Contact & Noncontact Forces Test Review

Front

What force pulls objects toward the Earth?

Back

Gravity.

Front

What is air resistance?

Back

A force that opposes the motion of an object through the air.

Front

What is a force?

Back

A push or a pull on an object.

Front

What causes a ball to roll down a hill?

Back

Gravity.

Front

What force slows down a rolling ball?

Back

Frictional force.

Front

What happens to an object when a force is applied?

Back

It can accelerate, slow down, change shape, or remain in place.

Front

What is a contact force?

Back

A force that requires physical contact between two objects.

Front

What is a noncontact force?

Back

A force that acts on an object without physical contact, such as gravity or magnetism.

Front

What is friction?

Back

A force that opposes the motion of an object in contact with a surface.

Front

How does gravity affect falling objects?

Back

It pulls them downward toward the center of the Earth.