Difference Between Heat and Temperature

1. What happens to the temperature of an object when the particles are moving faster?

• reduces

• increases

• remains constant

• increases then reduces

2. When a substance undergoes thermal expansion, its _________.

• mass increases

• volume decreases

• particles get colder

• particles spread out

3. The natural direction of heat flow between two bodies depends on __________.

• their volume

• their temperature

• their heat capacity

• whether they are in a liquid, a solid or gaseous state

4. Which expands the greatest when heated at the same temperature?

• gas

• solid

• liquid

• all expand equally

5. During warm days, you cool yourself by damping your skin with a wet towel.

Which of the following takes place?

• A wet towel has no effect on your body.

• A wet towel releases heat energy into your body.

• A wet towel absorbs heat energy from your body.

• A wet towel has the same temperature as your body.

6. Why does liquid in the thermometer rise when put in hot water?

• The liquid is boiling.

• The liquid is evaporating.

• The liquid gains heat from the hot water causing it to expand.

• The liquid loses heat from the hot water causing it to contract.