Chapter 3 Review

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the Earth pulling us down.

Front

What does it mean to overcome gravity?

Back

To overcome gravity means to use enough force to lift an object off the ground.

Front

What happens to a ball when it is thrown into the air?

Back

The ball rises because it has enough force to overcome gravity, but it will eventually fall back down.

Front

What is the relationship between mass and gravity?

Back

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

Front

What is an example of an object that can overcome gravity?

Back

A rocket can overcome gravity when it launches into space.

Front

How does the distance from the sun affect gravitational pull?

Back

The closer a planet is to the sun, the greater the gravitational pull it experiences.

Front

What force is needed to jump on a less massive planet compared to Earth?

Back

You would need less force to jump on a less massive planet.

Front

What does gravity do to objects?

Back

Gravity pulls objects toward each other, like how it pulls us toward the Earth.

Front

Can gravity act at a distance?

Back

Yes, gravity can pull objects without having to touch them.

Front

What is an example of a situation where gravity is not strong enough to keep an object on the ground?

Back

A hot air balloon rises because the lift force is greater than the force of gravity.