Objects that have opposite charges

are attracted to each other, and the force between the objects pulls them together

are attracted to each other, and the force between the objects pushes them apart

are repelled by each other, and the force between both objects pulls them together

are repelled by each other, and the force between objects pushes them apart

What is the primary function of insulators?

To resist the flow of electric or thermal energy

Why are electric wires covered in a rubber or plastic coating?

To prevent energy from escaping

Why are hot beverages often served in styrofoam cups or ceramic mugs?

Because they are good insulators

Which of the following best describes an insulator?

A material that blocks the flow of electricity.

A material that allows electricity to flow easily through it.

A material that allows charges to move freely when a voltage is applied.

What is static electricity?

The buildup of electric charge on the surface of objects at rest.

The flow of electrons through a conductor.

The movement of ions in a solution.

The constant movement of electric charge in a circuit.

When you rub a balloon on your hair, the balloon becomes negatively charged. What happens to your hair?

Your hair becomes negatively charged.

Your hair becomes positively charged.

What is the primary difference between charging by conduction and induction?

Conduction requires contact, induction does not.

Induction requires contact, conduction does not.

In charging by conduction, what happens when a neutral metal sphere contacts a negatively charged rod?

The sphere becomes negatively charged.

The sphere becomes positively charged.

What is the result of separating two spheres after charging by induction?

One sphere is positive, the other is negative.

Both spheres become negatively charged.

Both spheres become positively charged.

What role does grounding play in charging by induction?

It removes electrons from the object.

It adds electrons to the object.

How is a positive charge induced on a neutral sphere using a negatively charged rod?

By grounding the sphere while the rod is near.

By removing electrons from the rod.

By adding protons to the sphere.

By direct contact with the rod.

What is the key characteristic of charging by induction?

No contact between the charged object and the neutral object.

Direct contact between objects.

Which of the following best describes how static electricity is generated through friction?

Charges are transferred when two objects rub together, causing electrons to move.

Charges are transferred by direct contact between two objects.

A charged object induces a charge in another object without touching it.

Charges flow freely between two objects in contact, causing them to become equally charged.

When a charged object touches a neutral object, which of the following happens?

Electrons move from the charged object to the neutral object, making both objects charged.

The neutral object will attract electrons from the surrounding air.

The neutral object will gain a charge without any movement of electrons.

The charged object loses electrons, but the neutral object remains unchanged.

What occurs during charging by induction?

A charged object brings about a redistribution of charges in a neutral object, but no contact is made.

Two objects rub together, transferring charge by friction.

A charged object directly touches a neutral object, transferring charge.

Charges are transferred by grounding the neutral object before separation.

What happens when electrons move from one object to another?

One object becomes positively charged, the other negatively

Both objects become positively charged

Both objects become negatively charged

What is the role of conductors in static electricity?

They allow electrons to move freely

Why are insulators more likely to cause static build-up?

They hold onto their electrons tightly

They allow free electron movement

What is the primary cause of a static shock from a doorknob?

Electron transfer to neutralize charge

Friction between metal and skin

What causes the charge separation in clouds?

Movement of water droplets and ice

Interactive Video

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Science

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8th - 12th Grade

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Practice Problem

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Adanna Frazier

Used 2+ times

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54 questions

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SLIDE QUESTION

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SLIDE QUESTION

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SLIDE QUESTION

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SLIDE QUESTION

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SLIDE QUESTION

30 sec • Ungraded

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The charge of an electron is

Positive

Negative

Electrons have no charge

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two like charges

Neutralize each other

Repel each other

Must be neutrons

Attract each other

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The charge of an electron is

Two like charges

If two balloons have the same charge, what will happen if you place them close to each other?

Objects that have opposite charges

If two charges repel each other, the two charges must be

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