Science Ch. 7 Test

Magnetism is the pushing or pulling force caused by a magnet.

• True

• False

Gravity is a force that slows or stops motion

• True

• False

The force that pulls objects toward the center of the earth is called friction.

• True

• False

The measure of the force of gravity on an object is called weight.

• True

• False

A change of position is called _____________.

• motion

• force

One kind of invisible force is _____________.

• force

• gravity

Objects cannot move unless a _____________ causes them to work.

• force

• work

When a force moves something, we say that _________ is done.

• motion

• work

Simple machines make work ____________.

• change

• easier

Energy can ___________ from one form to another.

• change

• gravity