Physics Practice Questions - Quiz- Heat

absorbs energy

20. When a solid changes to a liquid state, the solid a. releases energy c. neither releases nor absorbs b. absorbs energy

fluids

26. Energy transfer by convection is primarily restricted to a. solids b. liquids c. fluids d. gases

cools the surrounding air

27. Melting snow a. warms the surrounding air b. cools the surrounding air c. neither warms nor cools the surrounding air

an igloo

28. If you were caught in freezing weather with only a candle for heat, you would be warmer in a. an igloo c. a wooden house b. a tent d. a car

convection

29. Thermos bottles are evacuated to prevent heat transfer by a. radiation b. convection c. conduction d. evaporation

iron

3. Which of the following has the lowest specific heat? a. water b. wood c. iron d. cork

decreases

5. If glass expanded more than mercury, then the column of mercury in a mercury thermometer would rise when the temperature a. increases c. neither increases nor decreases b. decreases

high specific heats

6. Some molecules are able to absorb large amounts of energy in the form of internal vibrations and rotations. Materials composed of such molecules would have a. low specific heats b. high specific heats

removes heat from inside the refrigerator

7. A refrigerator a. produces cold. b. causes heat to disappear c. removes heat from inside the refrigerator d. changes heat into cold.

low specific heat

8. The fact that desert sand is very hot in the day and very cold at night is evidence that sand has a a. low specific heat b. high specific heat

the more energetic molecules are able to break away from the liquid

1. Evaporation is a cooling process because a. head is radiated during the process b. of conduction and convection c. the more energetic molecules are able to break away from the liquid d. the temperature of the remaining liquid decreases

more likely to freeze

10. If the specific heat of water were lower than it is, in winter, ponds would be a. more likely to freeze b. less likely to freeze c. neither more nor less likely to freeze

radiation

11. The silver coating of the glass surfaces of a Thermos bottle reduces energy that is transferred by a. conduction d. friction b. convection c. radiation

warmer

12. When water vapor condenses on the inside of a window, the room becomes slightly a. warmer b.cooler c. neither warmer nor cooler

cools

13. if a volume of air is warmed, it expands. If a volume of air expands, it a. warms. b. cools. c. neither warms nor cools

less than its surroundings

14. if a poor absorber of radiation were a good emitter, its temperature would be a. less than its surroundings b. more than its surroundings c. the same as its surroundings.

a good emitter of radiation

15. A good absorber of radiation is a. a good emitter of radiation b. a poor emitter of radiation c. a good reflector

slow moving molecules coalescing on the grass

16. Morning dew on the grass is a result of a. evaporation of water b. the open-structured form of water crystals c. slow moving molecules coalescing on the grass d. air pressure on water vapor

stay the same

17. If molecules in a sample as moved so they completely missed each other, the gas's temperature would a. increase b. decrease c. stay the same

releases energy

18. When a gas changes to a liquid state, the gas a. releases energy c. neither releases nor absorbs b. absorbs energy energy

warming process

19. Evaporation is a cooling process and condensation is a a. warming process b. cooling process also c. neither a warming nor cooling process

water expands when freezing

2. During a very cold winter, water pipes sometimes burst. The reason for this is a. the ground contracts when colder, pulling pipes apart. b. water expands when freezing. c. water contracts when freezing. d. the thawing process releases pressure on the pipes.

release energy

21. When liquids change to a solid state, they a. absorb energy c. neither release nor absorbs energy b. release energy

a lower temperature than at sea level

22. In the mountains, water boils at a. a higher temperature at a sea level b. a lower temperature than at sea level c. the same temperature as at sea level

less than at sea level

23. When boiling water in the mountains, the time needed to reach the boiling point is a. less than at sea level b. more than at sea level c. the same as at sea level

at the same rate as before

24. Food cooked in boiling water in the mountains, cooks slower than when cooked at sea level. If the temperature under the pot is increased, the food will cook a. faster c. at the same rate as before b. slower

boil the eggs for a longer time

25. If you want to cook boiled eggs while in the mountains, you should a. use a hotter flame b. boil the eggs for a shorter time because the boiling temperature is less in the mountains c. boil the eggs for a longer time d. not even consider boiling eggs because the water temperature won't even get hot enough to cook the eggs.

stays the same

30. When heat is added to boiling water, its temperature a. increases b. decreases c. stays the same

temperature, but less internal energy

4. Compared to a giant iceberg, a hot cup of coffee has more a. internal energy and higher temperature b. temperature, but less internal energy c. specific heat and more internal energy d. none of these

the iron would have the higher temperature

9. A piece of iron and a cup of water both have the same temperature. If they are heated so the thermal energy of each doubles a. he water will have the higher temperature b. the iron would have the higher temperature c. both will have the same temperature d. not enough information given to say