Heat and Electrical Conductivity

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Questions and Answers

Why are metals generally good conductors of electricity and heat?

They lack charged particles.
Their electrons are tightly bonded, preventing flow.
Their electrons can move freely. (correct)
They are typically very thick and long.

Which of the following best describes the process of heat transfer through convection?

Heat transfer through solids.
Heat transfer through the movement of fluids. (correct)
Heat transfer between objects in direct contact.
Heat transfer through empty space.

Which of the following factors would improve the conductivity of a metal wire?

Decreasing the wire's temperature.
Increasing the wire's length.
Decreasing the wire's thickness.
Increasing the wire's temperature. (correct)

A student is designing a handle for a cooking pot. Which material would be most suitable to prevent heat transfer to the user's hand?

In which scenario is heat primarily transferred through radiation?

Which of the following materials is the best insulator of heat and electricity?

Why do cooking utensils often have metal bases and plastic handles?

Which of the following is an example of heat transfer through conduction?

Which of the following materials would be safest to use when handling hot objects?

A student observes that hot air rises while cold air sinks. Which heat transfer method is being exemplified?

Flashcards

Heat transfer

Conductors

Insulators

Conduction

Convection

Radiation

Optimal conductor

Cooking utensil design

Study Notes

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