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Matter and Energy MCQ

_________________ is the movement of an object or a change in its physical structure.

Work

Hydrolysis reaction

Double covalent bond

Bases

Answer

Correct Answer: Work

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The source of most of the energy we use today is _____.

Fossil fuels

Geothermal

Nuclear

Biomass

Answer

Correct Answer: Fossil fuels

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The energy of 3600 cal is equal to ________ kj. | Hint; 1cal = 4.184 J kJ

0.86

3.6

4.184

15000

Answer

Correct Answer: 15

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The emission of light has most to do with the behavior of _________.

Electrons

Neutron

Proton

None of these

Answer

Correct Answer: Electrons

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Moving through trophic levels _______.

Effectively conserve and retain water

More producers than consumers

Photosynthesis

Protozoa

Answer

Correct Answer: Effectively conserve and retain water

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________ have the highest velocities.

Primary waves

Secondary waves

Surface waves

Refracted S wave

Answer

Correct Answer: Primary waves

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Velocity differs from speed in that velocity indicates a particle's __________ of motion

Direction

Vector

Magnitude

Answer

Correct Answer: Direction

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If quantity x is conserved for a certain system and during a certain process, that means__________.

Quantity X for that system does not change in any way during that process

Electron transitions within the molecule

Changes in molecular rotation

Changes in molecular vibration

Answer

Correct Answer: Quantity X for that system does not change in any way during that process

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Average body temperature is ________ degrees centigrade.

Answer

Correct Answer: 37

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Kinetic energy is energy in motion. potential energy is _____ energy.

Stored

Temperature

More complex

Louder

Answer

Correct Answer: Stored

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The total energy in a molecule, its enthalpy, is given by the letter ____.

Answer

Correct Answer: H

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Small objects denser than water can float on its surface because water has high _____.

Cohesion

Adhesion

Surface tension

Answer

Correct Answer: Surface tension

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When a radioactive isotope decays by electron capture, the electron ________.

Combines with a proton in the nucleus

Combines with neutronin the nucleus

Combines with a proton outside the nucleus

Ombines with a neutron outside the nucleus

Answer

Correct Answer: Combines with a proton in the nucleus

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Infrared radiation has a longer wavelength, frequency, and energy than visible light.

Lower, lower

Higher, lower

Lower, higher

Higher, higher

Answer

Correct Answer: Higher, lower

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Particle accelerators make it possible for scientists to study _____.

Gravity

Electricity

Quarks

All of the above

Answer

Correct Answer: Quarks

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When you burn a log in your fireplace you are converting ________.

Chemical to thermal (heat) energy

Thermal to electromagnetic energy

Electromagnetic to chemical

Chemical to nuclear energy

Answer

Correct Answer: Chemical to thermal (heat) energy

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The kinetic energy of a 23.2-g object moving at a speed of 81.9 km/hr is __________ kcal.

1900

77.8

145

1.43 x 10-3

6.00

Answer

Correct Answer: 1.43 x 10-3

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Matter and Energy MCQ

_________________ is the movement of an object or a change in its physical structure.

The source of most of the energy we use today is _____.

The energy of 3600 cal is equal to ________ kj. | Hint; 1cal = 4.184 J kJ

The emission of light has most to do with the behavior of _________.

Moving through trophic levels _______.

________ have the highest velocities.

Velocity differs from speed in that velocity indicates a particle's __________ of motion

If quantity x is conserved for a certain system and during a certain process, that means__________.

Average body temperature is ________ degrees centigrade.

Kinetic energy is energy in motion. potential energy is _____ energy.

The total energy in a molecule, its enthalpy, is given by the letter ____.

Small objects denser than water can float on its surface because water has high _____.

When a radioactive isotope decays by electron capture, the electron ________.

Infrared radiation has a longer wavelength, ____ frequency, and ____ energy than visible light.

Particle accelerators make it possible for scientists to study _____.

When you burn a log in your fireplace you are converting ________.

The kinetic energy of a 23.2-g object moving at a speed of 81.9 km/hr is __________ kcal.

Infrared radiation has a longer wavelength, frequency, and energy than visible light.