Force and Motion

a push or a pull

• force

• motion

• gravity

• friction

a force that pulls two objects together

• force

• motion

• gravity

• friction

movement; caused by a force

• force

• motion

• gravity

• friction

when two objects rub together

• force

• motion

• gravity

• friction

the amount of matter in an object

• force

• gravity

• mass

• motion

Which has the most mass and the strongest force of gravity?

• sun

• moon

• earth

• human

True or False? People weigh less on the moon because the gravity is weaker.

• true

• false

True or False? There is no gravity in outer space.

• true

• false