Heat Transfer and Thermal Energy Review

What is temperature?

• The total kinetic energy of all particles

• The average kinetic energy of particles

• The amount of mass per unit volume

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What is an insulator?

• A material that transfers heat easily

• A material that resists heat transfer

• A type of energy

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What is a conductor?

• A material that resists heat transfer

• A material that allows heat to pass through easily

• A type of radiation

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What is thermal expansion?

• Particles slow down and pack together

• An increase in volume when heated

• Energy transfer by waves

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What is density?

• Mass per unit of volume

• The heat required to change temperature

• The average kinetic energy of particles

Which type of heat transfer occurs through direct contact?

• Radiation

• Conduction

• Convection

Which type of heat transfer occurs in liquids and gases by currents?

• Radiation

• Convection

• Conduction

Which type of heat transfer travels through space as electromagnetic waves?

• Radiation

• Conduction

• Convection

Why are pot handles often made of wood or plastic?

• They are conductors of heat

• They are insulators of heat

• They are dense materials

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Why does a metal spoon heat up faster than a wooden spoon?

• Metal is a conductor

• Wood is a conductor

• Wood has more density

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