Unit 4: Energy Review

What is the definition of energy?

• Energy is the ability to do work.

• Energy is the ability to create matter.

• Energy is the ability to produce light.

• Energy is the ability to generate sound.

Which type of energy is stored in chemical compounds and released in chemical reactions?

• Chemical Energy

• Kinetic Energy

• Potential Energy

• Thermal Energy

Which type of energy is the energy of motion?

• Kinetic Energy

• Potential Energy

• Chemical Energy

• Nuclear Energy

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Which type of energy does a ball falling through the air have?

• Potential and Kinetic Energy

• Only Potential Energy

• Only Kinetic Energy

• Thermal Energy

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When a car stops, the brakes heat up because of friction. What is this an example of?

• One type of energy being converted to another.

• Energy being destroyed.

• Energy being created.

• Energy being stored.

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Which type of energy is water held back by a dam?

• Potential Energy

• Kinetic Energy

• Chemical Energy

• Thermal Energy

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Where on a roller coaster track would the car have the most kinetic energy?

• At the lowest point

• At the highest point

• At the middle point

• At the starting point

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Which type of energy would a tire swing going back and forth demonstrate?

• It has both potential and kinetic energy.

• Only Potential Energy

• Only Kinetic Energy

• Thermal Energy

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Which statement describes what happens to the molecules when ice melts, according to the kinetic theory?

• The water molecules increase their speed.

• The water molecules decrease their speed.

• The water molecules stop moving.

• The water molecules change shape.

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How is temperature defined?

• Temperature is an indirect measurement of the heat energy in a substance.

• Temperature is a direct measurement of light energy.

• Temperature is a measure of sound energy.

• Temperature is a measure of electrical energy.

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