Conductors and Insulators

What is the role of insulators in electrical circuits?

• Insulators allow electricity to flow freely.

• Insulators prevent the unwanted flow of electricity.

• Insulators increase the speed of electrical flow.

• Insulators are used to store electrical energy.

What happens to heat when it passes through an insulator?

• Heat moves easily through an insulator.

• Heat does not move easily through an insulator.

• Heat is absorbed completely by the insulator.

• Heat is reflected back by the insulator.

What is the difference between conductors and insulators?

• Conductors allow heat and electricity to flow easily, while insulators resist that flow.

• Conductors are used to store energy, while insulators are used to release it.

• Conductors are materials that do not allow any flow of electricity, while insulators allow it.

• Conductors are always metals, while insulators are always non-metals.

Why do mittens keep your hands warm in winter?

• They are made of wool.

• They are insulators.

• They are waterproof.

• They are lined with fur.

Name a common use of insulators.

• To cover electrical wires to prevent shock.

• To enhance the conductivity of materials.

• To increase the temperature of electrical components.

• To reduce the weight of electrical devices.

Is copper a conductor or an insulator?

• Copper is a conductor.

• Copper is an insulator.

• Copper is a semiconductor.

• Copper is a superconductor.

Which material is a good electrical conductor?

• Copper

• Gold

• Silver

• Wood

Why are metals generally good conductors?

• Metals have a high density that allows for better conduction.

• Metals have free electrons that can move easily.

• Metals are always in a solid state, which aids conduction.

• Metals have a low melting point, making them easier to conduct.

What is an insulator?

• A material that allows heat and electricity to pass through easily.

• A material that slows the transfer of heat or electricity.

• A type of conductor used in electrical circuits.

• A substance that can generate electricity.

What is a conductor?

• A material that transfers heat or electricity easily.

• A material that insulates heat and electricity.

• A type of electrical device used in circuits.

• A substance that cannot conduct any form of energy.