Conceptual Physics Chapter 21

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

• one reaches a temperature of zero
• they both have an equal temperature
• one runs out of energy

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When heat is transferred by the movement of currents within a fluid it is called 

• conduction
• convection
• radiation

The transfer of energy by electromagnetic waves is called

• conduction

• convection

• radiation

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Identify the heat transfer indicated by the arrow in this picture

• conduction

• convection

• radiation

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Identify the heat transfer happening in this image

• conduction
• convection
• radiation

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A material that does NOT conduct heat well is called a(n)

• conductor (ex. spoon, metals)

• insulator (ex. wood, wool, straw, paper)

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This is an example of a(n)

• good conductor of heat

• insulator

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What is a transfer of energy through colliding particles?

• Convection

• Conduction

• Radiation

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Which of the following is the sun's rays reaching the earth?

• radiation
• convection
• conduction
• insulator

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Conduction transfers heat by atoms colliding and transferring energy.

• True
• False