Review on Heat and Molecular Motion

What does temperature measure?

• The total energy of all particles in an object

• The average kinetic energy of particles in a substance

• The potential energy stored in an object

• The amount of space an object occupies

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What is kinetic energy?

• Energy due to an object's position

• Energy due to an object's motion

• Energy stored in chemical bonds

• Energy transferred through waves

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What is matter?

• Anything that has mass and takes up space

• The energy transferred between objects

• The measure of the average kinetic energy

• The force exerted by an object

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What happens to molecular motion when a substance is heated?

• It decreases

• It remains the same

• It increases

• It stops

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What happens to temperature when molecular motion increases?

• It decreases

• It remains constant

• It increases

• It fluctuates

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What happens to molecular motion when a substance is cooled?

• It increases

• It remains the same

• It decreases

• It accelerates

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What happens to temperature when molecular motion decreases?

• It increases

• It remains constant

• It decreases

• It fluctuates

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As molecular motion increases, what happens to the space between molecules?

• It decreases

• It remains the same

• It increases

• It disappears

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In the conduction lab setup, which direction does heat move?

• From cold water to hot water

• From hot water to cold water

• From thermometer A to thermometer B

• From the aluminum bar to the cups

What happens to the pizza crust after heat transfer occurs?

• It becomes warm.

• It becomes cold.

• It remains frozen.

• It evaporates.

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