Charge Unit Test Review (C.1-C.3)

Front

What happens to particles with opposite charges?

Back

They attract each other.

Front

Why does a balloon stick to a neutral wall?

Back

The negative charges on the balloon repel the negative charges in the wall, causing the positive charges in the wall to be attracted to the balloon.

Front

Where does an insulator hold charge?

Back

On the surface.

Front

If an object has more negative charges than positive charges, what is its electrical charge?

Back

Negative.

Front

What is the charge of cotton rubbed with acetate?

Back

Negative.

Front

What is the charge of two objects that repel each other?

Back

They have the same charge (either both positive or both negative).

Front

What is an insulator?

Back

A material that does not allow electric charges to flow freely.

Front

What is a conductor?

Back

A material that allows electric charges to flow freely.

Front

What is static electricity?

Back

The buildup of electric charge on the surface of objects.

Front

What is the principle of conservation of charge?

Back

Charge can neither be created nor destroyed; it can only be transferred from one object to another.