lesson 4-6

Gravity is the force of attraction that exists between any two ____ in the universe that have mass

• objects

• distance

• mass

Gravity depends on the ___ and the distance between them

• center

• force

• mass

Gravity depends on the mass and the ____ between them

• distance

• force

• direction

the greater the mass of an object the ____ gravitational force the object will exert on other objects

• less

• more

the gravity we fell on Earth is very ____

• strong

• weak

Earth's gravity pulls everything towards the ____ of the Earth

• mass

• distance

• orbit

• center

Earth's gravity is a ________ force

• center

• noncontact

• heavier

• stronger

when an object is lifted, it must _________ the force of gravity

• throw

• overcome

• move

• center

Heavy things are hard to lift because the force of gravity is ________ for objects with more mass.

• lighter

• heavier

Some force may be caused by _____ forces at a distance

• opposite

• gravity

• invisible