Lesson 60: Thermodynamics Quiz

The hot wax in a lava lamp floating up is best explained by

• conduction

• convection

• radiation

• the magic of friendship

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Which material is the best insulator?

• cast iron pan

• a copper rod

• mercury

• a pot holder

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Which material is the best conductor of heat?

• wool sweater

• styrofoam cup

• metal spoon

• air

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An infrared camera (also called a “heat vision” camera) works because the warmer an object is, the more infrared light it shines. Even in complete darkness, warm objects still give off infrared light. This camera is best explained by

• conduction

• convection

• radiation

• a wizard did it

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Four containers of water with different temperatures are placed on a table as pictured. The temperature of the room is 25°C. What will happen to the temperature of the water in container A?

• The water in container A will warm up.

• The water in container A will cool down.

• The water in container A will stay the same temperature.

• The water in container A will explode.

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Four containers of water with different temperatures are placed on a table as pictured. The temperature of the room is 25°C. What will happen to the temperature of the water in container C?

• The water in container C will warm up.

• The water in container C will cool down.

• The water in container C will stay the same temperature.

• The water in container C will catch on fire.

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Four containers of water with different temperatures are placed on a table as pictured. The temperature of the room is 25°C. What will happen to the temperature of the water in container D?

• The water in container D will warm up.

• The water in container D will cool down.

• The water in container D will stay the same temperature.

• The water in container D will turn into mountain dew because mountain dew is delicious.

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Four containers of water with different temperatures are placed on a table as pictured. The temperature of the room is 25°C. After 10 hours, which container of water will have exchanged the most heat energy with the environment?

• A

• B

• C

• D

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Four containers of water with different temperatures are placed on a table as pictured. The temperature of the room is 25°C. When all of the containers have reached room temperature (25°C), all of the objects are in

• special relativity

• general relativity

• absolute zero

• thermal equilibrium

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The specific heat of water is 4.184 J/g°C. How much heat must be added to 2g of water to raise its temperature from 70 °C to 80 °C? Answer including units.

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