G3 gravity HW

Gravity ____________ as mass decreases.

• increases

• decreases

• does not change

The force of gravity on earth is ____________ the moon's.

• less than

• greater than

• equal to

What would happen if there was no gravity?

• Everything would float.

• Everything would be the same.

• Everything would sink.

Why does a ball fall to the ground?

• Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground.

• Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground.

• Earth's force of gravity is EQUAL to the ball's, so the ball gets attracted to the ground.

The Sun has the greatest pull of gravity. This is why Earth does not float away in space.

• TRUE

• FALSE

If you kick a soccer ball, it goes up to a certain distance and stops. This happens due to ____________.

• gravity

• weight

• friction

Gravity is a force that ____________.

• pushes objects away from Earth

• pulls objects towards Earth

Which surface has the least friction?

• A carpeted floor

• A rough, bumpy sidewalk

• A smooth, icy road

• A gravel driveway

What is friction?

• A type of gravity

• A kind of electricity

• A force that slows down or stops objects

• A force that helps objects move faster

What happens when you slide a book across a table?

• Gravity will push it forward

• Friction will slow it down and stop it

• It will keep moving forever

• It will speed up