Unit 3 Lesson 4 Review

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, like how the Earth pulls us down.

Front

True or False: Gravity pulls skydivers towards the Earth.

Back

True

Front

What force opposes gravity when a rocket launches?

Back

The force of the rocket's engines opposes gravity.

Front

True or False: Planes avoid gravity.

Back

False. Planes use force to overcome gravity.

Front

What does Earth's gravity pull everything towards?

Back

Earth.

Front

What is an example of overcoming gravity?

Back

A rocket launching into space.

Front

What happens to objects when they fall?

Back

They are pulled down by gravity.

Front

True or False: Gravity is only present on Earth.

Back

False. Gravity exists everywhere in the universe.

Front

What is the relationship between mass and gravity?

Back

The more mass an object has, the stronger its gravitational pull.

Front

What keeps the Moon in orbit around the Earth?

Back

The gravitational pull of the Earth.