Gravitational Forces

What is a gravity?

• An invisible force that you inhale

• An invisible force that pulls objects toward eachother

• An animal

• An invisible force that pushes objects towards the Earth

Answer explanation

Gravity is a invisible force that surrounds us.

Draw which way gravity goes

Answer explanation

Gravity pulls towards the center of the Earth.

True or False?
Gravity is weaker when planets are closer.

• True

• False

Name three things that might happen if gravity didn't exist.

Answer explanation

Gravity is one of the most important forces in the universe. The planets are held together with gravity.

Who discovered gravity?

• Isaac Newton

• Neil Armstrong

• Justin Bieber

• Albert Einstein

Answer explanation

Isaac Newton discovered gravity. He discovered it by seeing an apple fall from a tree. He then created the theory of gravity! Albert Einstien added onto Isaac's discover, but he didn't create the theory.

Gravity is a _____

When was gravity first discovered?

• 1666

• 1370

• 1664

• 1667

Answer explanation

Isaac Newton discovered gravity in 1666

True or False?

The gravity on Earth is stronger than the gravity on Kepler 22B

• True

• False

What is Newton's 2nd law?

• An object will not change its motion unless a force acts on it.

Draw a diagram of a wormhole