Exploring Conductors and Insulators in Physics

What is a common characteristic of both electrical insulators and conductors?

• Both are composed of a single type of atom.

• Both have a positively charged nucleus that cannot move.

• Both have freely moving electrons.

• Both can conduct electricity equally well.

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What is the key difference between conductors and insulators?

• Insulators can conduct electricity better than conductors.

• Insulators have freely moving electrons while conductors do not.

• Conductors have electrons that can move freely, while insulators do not.

• Conductors have a fixed nucleus while insulators do not.

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How do electrons in a conductor respond when connected to a battery?

• They start migrating down the line.

• They move to the center of the conductor.

• They remain stationary.

• They get stuck in place.

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What happens to extra negative charges added to an insulator?

• They move freely throughout the insulator.

• They immediately leave the insulator.

• They get stuck and cannot move.

• They gather at the center of the insulator.

Where do extra charges reside in a conductor?

• They leave the conductor immediately.

• On the outside edge of the conductor.

• Evenly distributed throughout the conductor.

• In the center of the conductor.

Which of the following is an example of an electrical insulator?

• Copper

• Gold

• Silver

• Glass

What happens when a negatively charged rod touches a neutral conducting rod?

• The charges leave both rods.

• The charges move to the center of the second rod.

• The charges spread out evenly between both rods.

• The charges remain on the first rod.

What is 'charging by induction'?

• Charging an object by directly touching it.

• Charging an object by cooling it.

• Charging an object by bringing a charged object close to it without touching.

• Charging an object by heating it.

How does a negatively charged balloon stick to a wall?

• By creating a magnetic field.

• By polarizing the atoms in the wall.

• By transferring electrons to the wall.

• By heating the wall.

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What is the role of 'ground' in charging by induction?

• It cools the object being charged.

• It provides a place for electrons to move to or from.

• It heats the object being charged.

• It prevents the object from being charged.

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