7.8C Temperature and Kinetic Energy Quiz

What happens to the kinetic energy of particles in a substance when the temperature increases?

• The kinetic energy decreases.

• The kinetic energy remains the same.

• The kinetic energy increases.

• The kinetic energy becomes zero.

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TEKS.SCI.7.8C

If the temperature of a gas is decreased, what happens to the speed of its particles?

• The speed of the particles increases.

• The speed of the particles decreases.

• The speed of the particles remains constant.

• The speed of the particles becomes infinite.

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TEKS.SCI.7.8C

Which of the following statements best describes the relationship between temperature and kinetic energy?

• Temperature is directly proportional to kinetic energy.

• Temperature is inversely proportional to kinetic energy.

• Temperature and kinetic energy are unrelated.

• Temperature is equal to kinetic energy.

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TEKS.SCI.7.8C

What is the effect on the kinetic energy of particles when a liquid is heated?

• The kinetic energy decreases.

• The kinetic energy increases.

• The kinetic energy remains unchanged.

• The kinetic energy becomes negative.

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TEKS.SCI.7.8C

How does the kinetic energy of particles in a solid change as the temperature decreases?

• The kinetic energy increases.

• The kinetic energy decreases.

• The kinetic energy remains the same.

• The kinetic energy becomes zero.

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TEKS.SCI.7.8C

Which of the following is true about the particles in a gas at higher temperatures?

• They move slower.

• They move faster.

• They stop moving.

• They move at the same speed.

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TEKS.SCI.7.8C

What happens to the kinetic energy of particles in a substance when it is cooled?

• The kinetic energy increases.

• The kinetic energy decreases.

• The kinetic energy remains constant.

• The kinetic energy becomes infinite.

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TEKS.SCI.7.8C

If the temperature of a liquid is increased, what happens to the motion of its particles?

• The motion of the particles slows down.

• The motion of the particles speeds up.

• The motion of the particles stops.

• The motion of the particles remains unchanged.

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TEKS.SCI.7.8C

Which of the following best explains why a substance expands when heated?

• The particles move closer together.

• The particles move faster and spread apart.

• The particles stop moving.

• The particles decrease in size.

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TEKS.SCI.7.8C

What is the relationship between temperature and the average kinetic energy of particles in a substance?

• They are inversely proportional.

• They are directly proportional.

• They are unrelated.

• They are equal.

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TEKS.SCI.7.8C