Thermal Energy 7th Grade Science

The total kinetic energy of the molecules of a substance

• temperature

• thermal energy

• conduction

• radiation

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The average kinetic energy of a substance

• temperature

• thermal energy

• conduction

• radiation

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Does the tip of a lit match or a freezer full of ice cream bars have more thermal energy?

• match

• freezer of ice cream

• They have the same amount of thermal energy.

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Heat always transfers from...

• cold to hot

• hot to cold

• lower kinetic energy to higher kinetic energy

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Which of the following are methods of heat transfer? (Select all that apply)

• Insulation

• Conduction

• Convection

• Kinection

• Radiation

What type of materials allow for quick heat transfer?

• Insulators

• Radiators

• Conductors

• Gases

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What type of material slows the transfer of heat?

• Insulators

• Radiators

• Conductors

• Metals

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Why does an ice cube feel cold?

• Cold is transferred to warmer objects.

• The ice gives energy to your hand.

• Because penguins are cold.

• You are losing energy to the ice cube in your hand.

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If 3 spoons are placed into a bowl of hot water, which one can we expect to heat the fastest?

• Metal - a good conductor

• Plastic - a medium conductor

• Wood - a poor conductor

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The granite counter feels cold when I touch it due to...

• Conduction

• Convection

• Radiation

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