Gravity Learning Check

If there was no gravity and you jumped in the air, what would happen?

• You would jump and come back down to Earth like normal.

• You would jump and float in the air just above the ground.

• You would jump and keep going up and up forever, until something stopped you.

• There is no way to know what would happen.

The Earth pulls on us and we pull on the Earth, too.

• True

• False

2 objects will have the same force of gravity pulling on each other, but the ________ object will be pulled to the ________ object.

• larger; smaller

• smaller; larger

If the sun has gravity and pulls on the Earth, why doesn't the Earth get pulled into the sun?

• Because the Earth has enough mass to keep itself in orbit around the sun.

• Because the sun's gravity is not very strong.

• It does pull the Earth towards the sun, but very slowly so we don't notice.

• The sun has to pull on 7 other planets and can't pull them all in.

On the moon, your mass will change, but your weight will stay the same.

• True

• False

What happens to you if gravity suddenly stops on Earth?

• I would float up in the air.

• Nothing, I would remain on the ground.

What would happen to Earth if the sun lost it's gravitational force?

• The Earth would float or rise up.

• The Earth would sink or fall down.

• The Earth would fly off into space in a straight line.

• Nothing would happen to Earth.

Who was the first scientist to study gravity and describe it in their books?

• Albert Einstein

• Sir Isaac Newton

• Galileo Galilei

• Marie Curie