Note: This Question is unanswered, help us to find answer for this one
47. Rarefaction occurs only in a _______ wave.
Answer
Correct Answer:
Longitudinal.
Note: This Question is unanswered, help us to find answer for this one
48. On earth, when a body is in motion, there is always __________ to oppose the motion.
Answer
Correct Answer:
Friction
Note: This Question is unanswered, help us to find answer for this one
49. Most energy transfer occurs in water when it _________.
Answer
Correct Answer:
Vaporizes
Note: This Question is unanswered, help us to find answer for this one
50. Lenses correct vision by __________.
Answer
Correct Answer:
Bending light so that it focuses on the retina
Note: This Question is unanswered, help us to find answer for this one
51. In the vertical, the pressure gradient force points ____ and gravity points ____.
Answer
Correct Answer:
Away from the earth, toward the earth
Note: This Question is unanswered, help us to find answer for this one
52. If an object is placed 4cm from a 1.5cm focal length mirror, the image will be______?
Answer
Correct Answer:
Real, inverted and smaller
Note: This Question is unanswered, help us to find answer for this one
53. Fusion occurs in the _______ of the sun, where the pressure and temperature are very high.
Answer
Correct Answer:
Core
Note: This Question is unanswered, help us to find answer for this one
54. For uniform circular motion, the acceleration __________.
Answer
Correct Answer:
Is directed toward the center of the circle
Note: This Question is unanswered, help us to find answer for this one
55. Electrons tend to have more potential energy when ____.
Answer
Correct Answer:
They are in electron shells far from the nucleus
Note: This Question is unanswered, help us to find answer for this one
56. Electrons in the filament of a lamp that carries ac have a net speed that is _________.
Answer
Correct Answer:
Zero
Note: This Question is unanswered, help us to find answer for this one
57. Earth is the only planet that has a _____ and a _____.
Answer
Correct Answer:
Biosphere,Hydrosphere
Note: This Question is unanswered, help us to find answer for this one
58. Earth completes one rotation every _______.
Answer
Correct Answer:
24 hours
Note: This Question is unanswered, help us to find answer for this one
59. Each step in any energy conversion process will _____.
Answer
Correct Answer:
Dissipate energy
Note: This Question is unanswered, help us to find answer for this one
60. Each orbit surrounding an atom is allowed _____.
Answer
Correct Answer:
A limited number of electrons
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61. Coulomb's law is similar in form to _______.
Answer
Correct Answer:
Newton's law of gravity
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62. Analogue signals transmit information for such things as _____________.
Answer
Correct Answer:
AM/FM radio
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63. Air pressure over the surface of a bird's wings decreases when __________.
Answer
Correct Answer:
Air speed increases there
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64. A refracting telescope produces an image using a(n) ____.
Answer
Correct Answer:
Objective lens
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65. A machine is classified as a compound machine when _____.
Answer
Correct Answer:
Is made up of two or more simple machines that operate together
Note: This Question is unanswered, help us to find answer for this one
66. A diffraction spot is also known as a(n) _____ disk.
Answer
Correct Answer:
Airy
Note: This Question is unanswered, help us to find answer for this one
67. A chemical reaction in which bonds are created is usually associated with ________.
Answer
Correct Answer:
The consumption of energy
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68. A ball freely falling at 20 m/s will in the next second have a speed of ______.
Answer
Correct Answer:
30 m/s
Note: This Question is unanswered, help us to find answer for this one
69. The unit of resistance is _____.
Answer
Correct Answer:
Ohms
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70. Upon activation by stomach acidity, the secretions of the parietal cells _____.
Answer
Correct Answer:
Initiate the chemical digestion of protein in the stomach
Note: This Question is unanswered, help us to find answer for this one
71. In ________, one substance is transported into the cell and another is transported out.
Answer
Correct Answer:
Countertransport
Note: This Question is unanswered, help us to find answer for this one
72. Energy in most ecosystems must flow through autotrophs because ______.
Answer
Correct Answer:
Only autotrophs can convert solar energy into chemical energy
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73. Energy cannot be _______.
Answer
Correct Answer:
Destroyed
Note: This Question is unanswered, help us to find answer for this one
74. To avoid overdriving your headlights, __________
Answer
Correct Answer:
Cool your headlights periodically by switching to your parking lights
Note: This Question is unanswered, help us to find answer for this one
75. The trajectory of a projectile always ________________.
Answer
Correct Answer:
Curves downward, below the initial velocity vector
Note: This Question is unanswered, help us to find answer for this one
76. The pangaea theory supports the theory of plate tectonics because _____.
Answer
Correct Answer:
It is based on the idea that all the present continents were one supercontinent
Note: This Question is unanswered, help us to find answer for this one
77. The mass of the parts is always ___ the mass of the whole when looking at nuclear masses.
Answer
Correct Answer:
Greater than
Note: This Question is unanswered, help us to find answer for this one
78. The law that states that rock layers closest to the surface are the youngest rock is the _____.
Answer
Correct Answer:
Law of superposition
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79. Surface currents are driven by _____.
Answer
Correct Answer:
Wind
Note: This Question is unanswered, help us to find answer for this one
80. Inertia is ______ to mass.
Answer
Correct Answer:
Directly proportional
Note: This Question is unanswered, help us to find answer for this one
81. In subduction, _____.
Answer
Correct Answer:
The less dense plate slides over the denser plate
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82. In comparison with a gentle slope, a steep slope _____.
Answer
Correct Answer:
Requires more force over a shorter distance
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83. The bending of the cilia of the _____ causes a release of small bursts of neurotransmitter.
Answer
Correct Answer:
Inner hair cells
Note: This Question is unanswered, help us to find answer for this one
84. The temperature of ocean surface water depends on _____.
Answer
Correct Answer:
Latitude and season
Note: This Question is unanswered, help us to find answer for this one
85. The case in latin used for indirect objects is ______.
Answer
Correct Answer:
Dative
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86. Ice wedging is brought about by ____
Answer
Correct Answer:
Water freezing and thawing
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87. Extinction occurs when the ________ no longer produces the ________.
Answer
Correct Answer:
CS;CR
Note: This Question is unanswered, help us to find answer for this one
88. Experiments and investigations must be ____.
Answer
Correct Answer:
Repeatable
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89. Fault-block mountains form when large blocks of crust are _____ and tilted along normal faults.
Answer
Correct Answer:
Uplifted
Note: This Question is unanswered, help us to find answer for this one
90. If a pitch vibrates at 880 cycles, the octave below would vibrate at ____ cycles.
Answer
Correct Answer:
440
Note: This Question is unanswered, help us to find answer for this one
91. A light source that may flicker at the same rate as an older crt display screen is a(n) ____ bulb.
Answer
Correct Answer:
Fluorescentd
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92. As the balls reach their maximum displacement, their kinetic energy reaches __________.
Answer
Correct Answer:
Zero
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93. The strength of a magnetic field follows _____.
Answer
Correct Answer:
The law of poles
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94. If there were no __________, inertia would cause the moon to travel in a straight line.
Answer
Correct Answer:
Gravity
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95. With that push, they have accelerated their masses, which means they have _____ of their bodies.
Answer
Correct Answer:
Changed the velocity
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96. When you apply force at an angle to the direction of movement, ____ of the force does work.
Answer
Correct Answer:
Some
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97. When we speak about heat we refer to ___________.
Answer
Correct Answer:
Energy in transit
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98. When we are talking about how quickly ""how fast"" changes, we're talking about ______.
Answer
Correct Answer:
Acceleration
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99. When water changes to steam, energy is _______.
Answer
Correct Answer:
Absorbed by the steam
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100. When two systems in contact are not at the same temperature, _____ occurs.
Answer
Correct Answer:
Heat flow
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101. When an object has its motion changed, the cause is generally __________.
Answer
Correct Answer:
An external force
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102. When an iron rod is placed inside a current-carrying coil of wire _________.
Answer
Correct Answer:
Magnetic field increases
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103. To rotate an object counter-clockwise, you use a(n) ____ value for the angle of rotation.
Answer
Correct Answer:
Negative
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104. The two laws that best explain how the planets are able to stay in orbit about the sun are _____.
Answer
Correct Answer:
Newton's laws of gravity and inertia
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105. The strong force is one of the four fundamental forces in nature, and exists _________.
Answer
Correct Answer:
Only between particles in the nucleus
Note: This Question is unanswered, help us to find answer for this one
106. The resistance to an object being pulled over a surface is called _____.
Answer
Correct Answer:
Sliding friction Kinetic friction
Note: This question has more than 1 correct answers
Note: This Question is unanswered, help us to find answer for this one
107. The relation f ~ t tells us that high temperature sources emit electromagnetic waves of _________.
Answer
Correct Answer:
High frequency
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108. The part of a circuit that increases the electric potential of the electrons is the _____.
Answer
Correct Answer:
Battery
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109. The electric field inside a metallic conductor that is in electrostatic equilibrium is _____.
Answer
Correct Answer:
Zero
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110. The eardrum vibrates at ____.
Answer
Correct Answer:
The same frequency as the sound waves that hit it
Note: This Question is unanswered, help us to find answer for this one
111. The defining equation for calorimetry is __________.
Answer
Correct Answer:
Q1 + Q2 = 0
Note: This Question is unanswered, help us to find answer for this one
112. The calculation of momentum involves _____.
Answer
Correct Answer:
Mass and velocity
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113. The atoms of blue paper _____ blue light.
Answer
Correct Answer:
Reflect
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114. The acceleration of a cart rolling down a ramp depends on __________.
Answer
Correct Answer:
The angle of the ramp
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115. Temperature is a measure of _____.
Answer
Correct Answer:
Molecular movement
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116. Rotational inertia about the midpoint of an object becomes greater with _______.
Answer
Correct Answer:
Both A & B
Note: This Question is unanswered, help us to find answer for this one
117. Ocean waves contain energy that is transferred to them by ______ moving across the surface.
Answer
Correct Answer:
Wind
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118. Newton's law of cooling applies to objects that undergo _________.
Answer
Correct Answer:
Both A & B
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119. Most pulsars are observed only as ________ sources.
Answer
Correct Answer:
Radio.
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120. Most ocean waves obtain their energy and motion from _____.
Answer
Correct Answer:
Wind
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121. Materials that clearly transmit visible light are said to be _________.
Answer
Correct Answer:
Transparent
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122. Magnetism began thousands of years ago in a region of ______ known as magnesia.
Answer
Correct Answer:
Asia
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123. Loudness is to ____ as pitch is to ____.
Answer
Correct Answer:
Amplitude :frequency
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124. Longitudional waves travel through a series of ________ and ___________.
Answer
Correct Answer:
Compression and rarefaction
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125. It is impossible to destroy __________.
Answer
Correct Answer:
Energy
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126. Inertia keeps your vehicle moving until a force slows it down, like __________.
Answer
Correct Answer:
Both A and C
Note: This Question is unanswered, help us to find answer for this one
127. If your speed changes from 10 km/h to 6 km/h, you have a(n) ______ acceleration.
Answer
Correct Answer:
Negative
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128. If you raise an object to a greater height, you are increasing its __________.
Answer
Correct Answer:
Gravitational potential energy
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129. If you have to stop on an incline, your stopping distance will be __________ on a flat surface.
Answer
Correct Answer:
Less than
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130. Follow through is important in golf because it results in a greater _______.
Answer
Correct Answer:
Impulse on the ball
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131. Faraday discovered that a current could be induced in a solenoid (a coil of wire) when _____.
Answer
Correct Answer:
It is moved through a magnetic field.
Note: This Question is unanswered, help us to find answer for this one
132. Electromagnetic radiation of 500 nm wavelength lies in the __________ region of the spectrum.
Answer
Correct Answer:
Visible
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133. Electric fields exist ____________.
Answer
Correct Answer:
Only at points in space where there are charges
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134. Earth's magnetic field does not affect ____.
Answer
Correct Answer:
Other planets
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135. Earth's gravity acts upon objects with a steady force of __________.
Answer
Correct Answer:
9.8 meters per second squared
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136. Earth's gravitational field is strongest at _______.
Answer
Correct Answer:
Earth's surface
Note: This Question is unanswered, help us to find answer for this one
137. Each joule is one ____.
Answer
Correct Answer:
Newton-meter of energy
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138. Displacement is to velocity as ____________ is to acceleration.
Answer
Correct Answer:
Velocity
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139. Coulomb's law describes __________.
Answer
Correct Answer:
The force between two point charges
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140. Comparing infrared and ultraviolet, we can say that __________.
Answer
Correct Answer:
Infrared has longer wavelength and lower photon energy
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141. As you run toward a source of sound, you perceive the frequency of that sound to ________.
Answer
Correct Answer:
Increase
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142. As heat is added, the pressure in this gas __________.
Answer
Correct Answer:
Increases
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143. As air rises in a convection current __________.
Answer
Correct Answer:
Water condenses out to form clouds and rain
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144. An ocean wave is an example of a(n) _____ wave form.
Answer
Correct Answer:
Transverse
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145. All of the following are categories used to classify problems except problems of __________.
Answer
Correct Answer:
Schematic completion
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146. All are examples of electric forces except _________
Answer
Correct Answer:
A neutron pushing on another neutron
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147. A wave travels down the length of a 25-meter rope in 5.0 seconds. the speed of the wave is _____.
Answer
Correct Answer:
5.0 m/s
Note: This Question is unanswered, help us to find answer for this one
148. A slowly moving ship can have a greater momentum than a fast-moving racing car when _______.
Answer
Correct Answer:
Its mass times velocity is greater than that of the car.
Note: This Question is unanswered, help us to find answer for this one
149. A rake acts as a machine by _____ over which the force is applied.
Answer
Correct Answer:
Decreasing the applied force and increasing the distance
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150. A crate sits at rest on a factory floor. friction between the crate and floor occurs _______.
Answer
Correct Answer:
When the crate is pushed horizontally, whether sliding or not.
Note: This Question is unanswered, help us to find answer for this one
151. A ball rolling down an inclined plane each second picks up ______.
Answer
Correct Answer:
The same amount of speed each second
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152. A 1-kg stone and a 10-kg stone have the same acceleration in free fall because _______.
Answer
Correct Answer:
The ratio of weight to mass is the same for each
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153. The motion of a rock rolling downhill is known as __________ energy.
Answer
Correct Answer:
Kinetic
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154. Light and sound are _______ by seawater.
Answer
Correct Answer:
All of above are correct
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155. Warm air of a specific volume __________.
Answer
Correct Answer:
Is able to hold more water vapor than the same volume of cold air.
Note: This Question is unanswered, help us to find answer for this one
156. The speed of molecules is indirectly related to a measurement called _____.
Answer
Correct Answer:
Temperature
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157. The charge in the nucleus of an antimatter hydrogen atoms is __________.
Answer
Correct Answer:
Negative
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158. When a tree branch is bent, the region in the center of the branch is the __________.
Answer
Correct Answer:
Neutral layer
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159. When a satellite travels at constant speed, its shape is a(n) _______.
Answer
Correct Answer:
A circle.
Note: This Question is unanswered, help us to find answer for this one
160. When a rock tied to a string is whirled in a horizontal circle, doubling the speed _______.
Answer
Correct Answer:
Quadruples the tension in the string
Note: This Question is unanswered, help us to find answer for this one
161. When a radioactive isotope decays by electron capture, the electron ________.
Answer
Correct Answer:
Combines with a proton in the nucleus; the atomic number of the daughter is one less than the parent
Note: This Question is unanswered, help us to find answer for this one
162. Waves will have the highest speed in _____.
Answer
Correct Answer:
Air at 30°c
Note: This Question is unanswered, help us to find answer for this one
163. The wavelength of radiation is ____ proportional to the energy carried per wave.
Answer
Correct Answer:
Inversely
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164. The time it takes two successive crests of an ocean wave to pass a given point is called a _____.
Answer
Correct Answer:
Period
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165. The second law of thermodynamics is also known as the ___________ statement.
Answer
Correct Answer:
Clausius
Note: This Question is unanswered, help us to find answer for this one
166. The quantity that is called impulse can be measured by the _______.
Answer
Correct Answer:
Product of force and time.
Note: This Question is unanswered, help us to find answer for this one
167. The kinetic energy of a satellite remains constant when the satellite follows a __________.
Answer
Correct Answer:
A circular path
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168. The frequency of an electromagnetic wave is ______ proportional to its wavelength.
Answer
Correct Answer:
Inversely
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169. The force that every mass exerts on every other mass is called _________.
Answer
Correct Answer:
Gravity
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170. The force of gravity on you is greatest when you are standing _____.
Answer
Correct Answer:
On Earth's surface
Note: This Question is unanswered, help us to find answer for this one
171. The energy of an electromagnetic wave is related to _____. select all that apply.
Answer
Correct Answer:
The wave's amplitude
Note: This Question is unanswered, help us to find answer for this one
172. The direction of the force of friction on a sliding crate is _______.
Answer
Correct Answer:
Opposite to the direction of sliding
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173. Speed differs from velocity in the same way that __________ differs from displacement.
Answer
Correct Answer:
Distance
Note: This Question is unanswered, help us to find answer for this one
174. Sounds are represented as continuous ____ sound waves
Answer
Correct Answer:
Analog
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175. Sound waves are simply ________.
Answer
Correct Answer:
The vibration of the molecules of the air surrounding us
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176. Select all that apply. a vector always consists of _____.
Answer
Correct Answer:
Direction
Note: This Question is unanswered, help us to find answer for this one
177. The bohr model of the atom addressed the problem of _____.
Answer
Correct Answer:
Why electrons didn't fall into the positive nucleus
Note: This Question is unanswered, help us to find answer for this one
178. Einstein's theory of gravitation, compared with newton's, _______.
Answer
Correct Answer:
Eliminates the role of force
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179. The slope of a(n) _____ graph represents speed.
Answer
Correct Answer:
Distance-time
Note: This Question is unanswered, help us to find answer for this one
180. If gravity did not affect the path of a horizontally thrown ball, the ball would ____.
Answer
Correct Answer:
Travel horizontally
Note: This Question is unanswered, help us to find answer for this one
181. Variety is important for an exercise program because it __________.
Answer
Correct Answer:
Alleviates boredom
Note: This Question is unanswered, help us to find answer for this one
182. Atmospheric pressure changes ____.
Answer
Correct Answer:
More rapidly in the vertical direction than in the horizontal
Note: This Question is unanswered, help us to find answer for this one
183. An electron, when farther from the nucleus, has _______.
Answer
Correct Answer:
More energy
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184. An eagle flying through the air is an example of _____.
Answer
Correct Answer:
Kinetic energy
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185. A(n) ______ particle consists of two protons and neutrons.
Answer
Correct Answer:
Alpha
Note: This Question is unanswered, help us to find answer for this one
186. In argument diagrams, __________.
Answer
Correct Answer:
Single premises can support a conclusion or another premise
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187. In a propositional argument form the variables represent _____________.
Answer
Correct Answer:
Sentences
Note: This Question is unanswered, help us to find answer for this one
188. The compton effect illustrates __________
Answer
Correct Answer:
The particle nature of light.
Note: This Question is unanswered, help us to find answer for this one
189. Spontaneous reactions _____.
Answer
Correct Answer:
Always result in increased disorder of the system
Note: This Question is unanswered, help us to find answer for this one
190. Slides are placed upside down in a slide projector to correct for the _______ image produced.
Answer
Correct Answer:
Inverted
Note: This Question is unanswered, help us to find answer for this one
191. If you cannot get a chair to move across the floor, it is because ___ friction opposes your push.
Answer
Correct Answer:
Static
Note: This Question is unanswered, help us to find answer for this one
192. Heat can never flow from __________.
Answer
Correct Answer:
Cold to hot
Note: This Question is unanswered, help us to find answer for this one
193. The organization of data within folders in a manual file system is determined by _______.
Answer
Correct Answer:
Its expected use
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194. The organization of the data within the folders in a manual file system was determined by ____.
Answer
Correct Answer:
Its expected use
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195. The electromagnetic waves having the highest speed in free space are _________.
Answer
Correct Answer:
None in particular as gamma, radio, and light have the same speed
Note: This Question is unanswered, help us to find answer for this one
196. Müllerian ducts are found in ____.
Answer
Correct Answer:
Female and male fetuses early in development
Note: This Question is unanswered, help us to find answer for this one
197. Cholangi_____ is the dilation of the bile ducts.
Answer
Correct Answer:
Ectasis
Note: This Question is unanswered, help us to find answer for this one
198. When the rotational speed of a rotating system doubles, its angular momentum _______.
Answer
Correct Answer:
Doubles
Note: This Question is unanswered, help us to find answer for this one
199. Corticonuclear tracts __________.
Answer
Correct Answer:
Communicate with cranial nerve nuclei in the brainstem
Note: This Question is unanswered, help us to find answer for this one
200. The entropy of an isolated system _________.
Answer
Correct Answer:
Always increases or remains constant
Note: This Question is unanswered, help us to find answer for this one
201. The acceleration vector of a particle in projectile motion ________.
Answer
Correct Answer:
Is directed down at all times
Note: This Question is unanswered, help us to find answer for this one
202. Reflecting telescopes are popular because they're _______ than a refracting telescope.
Answer
Correct Answer:
Easier to build
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203. If a sound increases 5 db, the sound becomes _______ times louder.
Answer
Correct Answer:
Three
Note: This Question is unanswered, help us to find answer for this one
204. A _______ is a mound of ocean water that's driven toward coastal areas by hurricane-force winds
Answer
Correct Answer:
Storm surge
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205. The symbol shown represents a _____.
Answer
Correct Answer:
Battery
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206. When a red rose is held in white light, the color of its petals appears _________.
Answer
Correct Answer:
Red
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207. The change of phase from a solid to a gas is called _____.
Answer
Correct Answer:
Sublimation
Note: This Question is unanswered, help us to find answer for this one
208. Pitch is to frequency as ________.
Answer
Correct Answer:
Amplitude; loudness
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209. Changes of phase most always require _________.
Answer
Correct Answer:
A transfer of energy
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210. Air spaces are used in insulation because _____.
Answer
Correct Answer:
Air is a poor conductor
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211. A thermostat is to a house as the _____ is to the body.
Answer
Correct Answer:
Hypothalamus
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212. A thermos bottle _____.
Answer
Correct Answer:
All of them
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213. A nuclear change involves a change in _____.
Answer
Correct Answer:
An atom,
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214. When the temperature of a strip of iron is increased, the length of the strip _______.
Answer
Correct Answer:
Also increases.
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215. The magnetism of a permanent magnet results from __________.
Answer
Correct Answer:
The magnetic moments of electrons in the material making up the magnet
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216. The ___________ is a plane perpendicular to the optic axis through the focal point.
Answer
Correct Answer:
Focal plane
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217. Particles in a _______ wave move in an elliptical or circular motion
Answer
Correct Answer:
Sound
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218. In order that electromagnetic induction occurs in a circuit there must be a _________.
Answer
Correct Answer:
Change in magnetic field intensity
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219. If the speed of the magnet is doubled, the induced voltage is ________ .
Answer
Correct Answer:
Twice as great
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220. For most atoms, a stable configuration of electrons is attained when the atom __________.
Answer
Correct Answer:
Has eight electrons in its outermost shell
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221. Am stations broadcast on _________ that are measured in thousands of cycles per second.
Answer
Correct Answer:
Waves
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222. ____ tend to have the most intense feelings concerning death.
Answer
Correct Answer:
Young adults
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223. The thermodynamic processes that occur in nature ____________
Answer
Correct Answer:
Can not be reversed
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224. The charge on a gamma ray is ____. (1 point)
Answer
Correct Answer:
-2
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225. According to the principle of overload you should __________.
Answer
Correct Answer:
Gradually increase the difficulty of a workout
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226. Newton's second law of motion links force, acceleration, and _______.
Answer
Correct Answer:
Mass
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227. The core of a star must reach a temperature of _____ degrees celsius for hydrogen fusion to begin.
Answer
Correct Answer:
10,000,000
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228. The _____ law of thermodynamics states that not all energy is used because _____.
Answer
Correct Answer:
Second;some of the energy disperses as heat
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229. Mountains formed by two colliding continents often contain marine _______ rock.
Answer
Correct Answer:
Sedimntary
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230. If you know that a person is running 100 feet every 12 seconds, you can determine their __________.
Answer
Correct Answer:
None of these
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231. The constant g in newton's equation _______.
Answer
Correct Answer:
Makes the units of measurement consistent 6.67 × 10^ -11 N
Note: This question has more than 1 correct answers
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232. When the quantity q is greater than zero, __________ is added to the system.
Answer
Correct Answer:
Heat
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233. A typical efficiency of the human body is about _____.
Answer
Correct Answer:
25%
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234. When the stimulus voltage is increased, _______.
Answer
Correct Answer:
A greater-than-threshold depolarization results and sodium permeability into the cell increases to overcome the potassium exiting.
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235. The field inside a charged parallel-plate capacitor is __________.
Answer
Correct Answer:
Uniform
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236. The electric potential inside a parallel-plate capacitor __________.
Answer
Correct Answer:
Increases linearly from the negative to the positive plate
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237. The figure shows an electric circuit that has a form of rectangle. A battery is on the left side of the rectangle, a lightbulb is on the topside of the rectangle, and another lightbulb is on the right side of the rectangle. The bulbs in the circuit below are connected __________.
Answer
Correct Answer:
In series
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238. The wavelength of light that has a frequency of 1.20 x 1013 s-1 is ________ m.
Answer
Correct Answer:
2.50 * 10-5
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239. The voltages across the resistor and generator are ___________________.
Answer
Correct Answer:
Always out of phase
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240. The tangential speed on the outer edge of a rotating carousel is _______.
Answer
Correct Answer:
Greater than toward the center
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241. The foci of the elliptical path for an earth satellite are __________.
Answer
Correct Answer:
One at Earth's center and the other elsewhere
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242. The focal length __________ when the diameter of the lens is increased.
Answer
Correct Answer:
Does not change
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243. The energy of a photon that has a wavelength of 12.3 nm is __________ j.
Answer
Correct Answer:
1.62 x 10^-17
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244. The energy of a photon of red light is ____ the energy of a photon of blue light.
Answer
Correct Answer:
Smaller than
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245. The element in an incandescent light bulb that releases light energy is _____.
Answer
Correct Answer:
A thin tungsten filament
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246. First, consider a book resting on a horizontal table.
Answer
Correct Answer:
A long-range force
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247. The acceleration vector of a particle in uniform circular motion __________.
Answer
Correct Answer:
Points toward the center of the circle.
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248. Newton's _____ law explains why my hands hurt when i clap loudly.
Answer
Correct Answer:
3rd
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249. For two nucleons 2 fm apart, the strong force is __________.
Answer
Correct Answer:
Equally strong for any combination of protons and neutrons
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250. Increase in stimulus intensity _______.
Answer
Correct Answer:
Increases the frequency of action potentials
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251. Including a full-wave rectifier in an ac circuit will yield a(n) _______ current
Answer
Correct Answer:
Continuous direct
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252. The rate constant of a first-order process that has a half-life of 3.50 min is ________ s-1.
Answer
Correct Answer:
3.30×10−3
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253. The force exerted on the rope by the ceiling is in the _____ direction.
Answer
Correct Answer:
Upward
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254. The force acting on the particle at point a is __________
Answer
Correct Answer:
Directed to the left
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255. Of the following choices, the best conductor is _____.
Answer
Correct Answer:
Copper
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256. Normal faults occur from _____ stress and reverse faults occur from _____ stress.
Answer
Correct Answer:
Compressive ,tensional
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257. An upward force of magnitude _____ is exerted on the _____ by the table.
Answer
Correct Answer:
5N/ book
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258. All waves consist of some sort of ______ that transmits energy.
Answer
Correct Answer:
Disturbance
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259. A(n) ________ chip converts sound waves from a voice into a digital signal.
Answer
Correct Answer:
Analog-to-digital converter
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260. A mole of red photons of wavelength 725 nm has ________ kj of energy.
Answer
Correct Answer:
2.74 x 10−19
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261. The most common example of a(n) ____ switched network is the conventional telephone system.
Answer
Correct Answer:
Circuit
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262. In csma/ca, the amount of time a device is made to wait before it can transmit is called the ____.
Answer
Correct Answer:
Frame time (ft)
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263. To complete its outermost shell, oxygen will likely __________.
Answer
Correct Answer:
Accept electrons
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264. Yellow light + blue light = _______ light
Answer
Correct Answer:
White
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265. Pascal's principle says that changes in pressure at any point in an enclosed fluid _____.
Answer
Correct Answer:
Are transmitted to all points in the fluid
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266. One advantage of the __________ model is quick recognition.
Answer
Correct Answer:
Prototype
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267. In a practical machine, the power output is _______ the power input
Answer
Correct Answer:
Smaller than
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268. Electric charge can be transferred from one conducting body to another _________.
Answer
Correct Answer:
By both contact and closeness
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269. A battery is connected to a resistor. increasing the resistance of the resistor will __________.
Answer
Correct Answer:
Decrease the current in the circuit
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270. The source of the centripetal force that arises when a runner rounds a curve on a track is _____.
Answer
Correct Answer:
Friction
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271. The prefix in the term malignant is ___________.
Answer
Correct Answer:
Mal
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272. The power dissipated in a resistor can be written as __________.
Answer
Correct Answer:
(ΔVR)2/R
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273. Specific agricultural uses of water are all of the following except _____.
Answer
Correct Answer:
Evaporation
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274. Select all that apply. sound is a ____ wave.
Answer
Correct Answer:
Longitudinal
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275. Of the following, ________ is the largest mass.
Answer
Correct Answer:
25 kg
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276. Making popsicles _____________the entropy of the system.
Answer
Correct Answer:
Decreases
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277. In the situation described, the kinetic energy of the sled __________.
Answer
Correct Answer:
Increases
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278. If a book is lying on table than an upward force of magnitude _____ is exerted on the _____ by the table.
Answer
Correct Answer:
5N / book
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279. If two runners take the same amount of time to run a mile, they have the same __________.
Answer
Correct Answer:
Velocity
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280. If quantity x is conserved for a certain system and during a certain process, that means__________.
Answer
Correct Answer:
Quantity X for that system does not change in any way during that process.
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281. Friction between sliding surfaces is caused by _____. inertia microwelds the normal force gravity
Answer
Correct Answer:
Microwelds
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282. Force vector components for a sled pulled at an upward angle _______.
Answer
Correct Answer:
Are normally at right angles to each other
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283. Equations in conceptual physics are used mainly _______.
Answer
Correct Answer:
Guides to thinking
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284. Dark matter may explain _____
Answer
Correct Answer:
Unexpected orbital velocities of stars in galaxies
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285. Complete the relationship. 1 km = __________ mm.
Answer
Correct Answer:
1 ×10^6
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286. As water warms, it ________.
Answer
Correct Answer:
Decreases in density
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287. As the temperature of a radiating surface is increased ________.
Answer
Correct Answer:
The total amount of energy emitted increases and a larger portion of the energy is radiated at sorter wavelengths
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288. Areas always have dimensions ____ while volumes always have dimensions ____.
Answer
Correct Answer:
L2 , L3
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289. Air resistance on a parachutist at terminal speed _______.
Answer
Correct Answer:
Is greater for a heavier person
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290. A(n) ____’s main function is to help you understand the complexities of the real-world environment.
Answer
Correct Answer:
Model
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291. A refrigerator is an example of a __________.
Answer
Correct Answer:
Heat pump
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292. A metal rod moving perpendicular to a magnetic field acts like a ________.
Answer
Correct Answer:
Battery
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293. A helium-filled balloon will reach its maximum altitude when __________.
Answer
Correct Answer:
Its weight equals the weight of displaced air
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294. A column of mercury 76 cm tall has a weight that is equal to ___________.
Answer
Correct Answer:
That of a column of water 10.3 meters tall
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295. A car impacting another car head-on will have ____________ the force of impact.
Answer
Correct Answer:
Twice
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296. A book rests on a table. the forces acting on the book that keep it motionless are _______.
Answer
Correct Answer:
Both
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297. A ball thrown by a(n) __________ travels an average speed of 29 feet per second.
Answer
Correct Answer:
6-year-old girl
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298. A 7-n vector at an angle of 45° to the horizontal has a vertical component that is about _______.
Answer
Correct Answer:
5 N
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299. ""conservation of energy"" refers to the fact that _____.
Answer
Correct Answer:
Energy cannot be created or destroyed but can be converted from one form to another
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