Conductors Insulators

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What is a conductor?

Back

A conductor is a material that allows heat or electricity to flow through it easily. Examples include metals like copper and aluminum.

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NGSS.MS-PS3-3

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What is an insulator?

Back

An insulator is a material that does not allow heat or electricity to flow through it easily. Examples include rubber, glass, and plastic.

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Which particles have more thermal energy: hot particles or cold particles?

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Hot particles have more thermal energy than cold particles.

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What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy that causes particles to move.

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Which material is the best conductor of heat: metal, wood, or plastic?

Back

Metal is the best conductor of heat among these materials.

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Is plastic a good conductor of heat?

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No, plastic is a poor conductor of heat; it is an insulator.

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What happens to the particles in a hot substance?

Back

The particles in a hot substance move faster and have more energy compared to those in a cold substance.

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Can you name a common insulator used in cooking?

Back

A common insulator used in cooking is an oven mitt, often made of fabric or silicone.

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What is the role of conductors in electrical circuits?

Back

Conductors allow electric current to flow through the circuit, enabling devices to function.

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Why are metals often used in electrical wiring?

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Metals are used in electrical wiring because they are excellent conductors of electricity.