Unit 6 "Non-Contact Forces" Review Practice

Front

What happens when two like poles of a magnet are brought together?

Back

They repel each other.

Front

What is Electric Force?

Back

A push or pull between charged objects.

Front

Which factors affect the strength of an electromagnet?

Back

Current intensity and the number of turns in the wire.

Front

What is an insulator?

Back

A material that holds on tightly to its negative charges.

Front

What happens to the force between two charged objects as the distance decreases?

Back

The force increases.

Front

What is the definition of a non-contact force?

Back

A force that can act on an object without physical contact.

Front

What are examples of non-contact forces?

Back

Magnetic force, electric force, and gravitational force.

Front

How does distance affect gravitational force?

Back

Gravitational force decreases as distance increases.

Front

What is the role of electric fields?

Back

Electric fields exert forces on charged objects within the field.

Front

What is a magnetic field?

Back

A region around a magnet where magnetic forces can be felt.