Introduction to Heat Transfer

Warm air over the beach rises while cooler, dense air from the ocean rushes in due to

• conduction

• convection

• radiation

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A huge rock at the state park gets hot during the day. The rock was warmed from the Sun by

• conduction

• convection

• radiation

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You lay on the same hot rock at night and keep warm from the rock by

• conduction

• convection

• radiation

What is a substance that does NOT conduct heat well?

• Conductor

• Insulator

• Convector

• Radiator

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What happens when a cold drink sits in a hot room?

• It remains cold

• It gets warmer

• It starts boiling

• It starts to freeze

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Which of the following best describes temperature?

• Number of molecules

• Motion of molecules

• Size of molecules

• Type of molecules

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When two things are the same temperature:

• They have the same number of molecules

• Their molecules stop moving

• Their molecules move at the same average speed

• Heat transfer between the two things stops

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Thermoses work because they minimize which kinds of heart transfer?

• Conduction and convection

• Conduction and radiation

• Convection and radiation

• Conduction, convection, and radiation

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Hot chocolate is stirred with a spoon and the spoon gets hot.

• Conduction

• Convection

• Radiation

• Temperature

The sun warms your skin on a cold day.

• Conduction

• Convection

• Radiation

• Temperature