Exploring Heat Transfer: Conduction, Convection, and Radiation

Why are copper pans preferred for cooking?

• Copper is a poor conductor of heat.

• Copper is a good conductor of heat.

• Copper is a good insulator.

• Copper is lightweight.

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NGSS.MS-PS3-3

What is the main reason steel handles are used on pans?

• Steel is a good conductor of heat.

• Steel is cheaper than copper.

• Steel is a poor conductor of heat.

• Steel is lightweight.

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NGSS.MS-PS3-3

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What happens to particles in a dense metal like lead when heat is applied?

• They stop vibrating.

• They move away from each other.

• They become less dense.

• They start vibrating and transfer kinetic energy.

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NGSS.MS-PS1-4

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Why is copper a better conductor of heat than lead?

• Copper has free electrons that transfer heat.

• Copper has a higher density.

• Copper is lighter than lead.

• Copper does not vibrate when heated.

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NGSS.MS-PS3-3

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What is the primary method of heat transfer in fluids like gases or liquids?

• Reflection

• Radiation

• Convection

• Conduction

What causes the air near a convection heater to rise?

• The particles expand.

• The air becomes less dense.

• The air becomes more dense.

• The particles contract.

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NGSS.MS-PS1-4

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How does heat from the sun reach the Earth?

• Through sound waves

• Through infrared radiation

• Through convection

• Through conduction

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Which surfaces are better at absorbing and emitting infrared radiation?

• Light and shiny surfaces

• Dark and matte surfaces

• Smooth and reflective surfaces

• Transparent surfaces

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NGSS.MS-PS4-2

What is the main function of the vacuum in a vacuum flask?

• To prevent all forms of heat transfer

• To prevent radiation

• To prevent convection

• To prevent conduction

What role do silvered surfaces play in a vacuum flask?

• They increase the flask's weight.

• They reduce radiation.

• They enhance convection.

• They enhance conduction.

Tags

NGSS.MS-PS3-3