Energy Transfer and Temperature

What did we learn from Explore 2, where we had 3 beakers on a hot plate?

• The material of an object DOES have an effect on thermal energy

• The amount of material DOES NOT affect speed of thermal energy transfer.

• The amount of material DOES affect how quickly thermal energy transfers

• The material of an object DOES NOT have an effect on thermal energy

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What did we learn in Explore 3, where we used ice and a heat lamp?

• The environment DOES have an effect on the rate of energy transfer

• The environment DOES NOT have an effect on the rate of energy transfer

• The amount of material DOES NOT affect speed of thermal energy transfer.

• The amount of material DOES affect speed of thermal energy transfer.

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The material of an object does not have an effect on thermal energy.

• True

• False

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The thermal energy of an object is

• The TOTAL energy of all its moving particles

• The TOTAL energy of the temperature of the matter

• The TOTAL energy of its location

• The TOTAL energy of nothing

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Average kinetic energy of all the particles in a material

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Ice cream melts in a warm room because –

• Cold flows from the air into the ice cream.

• Heat flows from the ice cream into the air.

• Heat flows from the air into the ice cream.

• Cold flows out of the ice cream into the air.

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The three ways heat can transfer.

• Convection, conduction, and radiation

• Convection, insulation, and conduction

• Conduction, radiation, and insulation

• Convection, insulation, and radiation

Which form of heat transfer does not require a medium (an object to move through)?

• Conduction

• Convection and conduction

• Convection

• Radiation

How can heat transfer through a fluid?

• Conduction

• Convection and conduction

• Convection

• Radiation

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NGSS.MS-PS1-4

A 50 g ice cube and a 25 g ice cube are set on a table in a warm room. Which one will melt first?

• The 50 g ice cube.

• They won't melt.

• They will melt at the same time.

• The 25 g ice cube.

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