Gravity

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other. It keeps us on the ground and makes things fall.

Front

Who discovered the law of universal gravitation?

Back

Sir Isaac Newton discovered the law of universal gravitation.

Front

What does the law of universal gravitation state?

Back

It states that every mass attracts every other mass in the universe.

Front

What are two factors that affect the force of gravity between two objects?

Back

Mass and distance.

Front

If an object has mass, does it have gravity?

Back

Yes, any object with mass has gravity.

Front

What happens to the force of gravity if the distance between two objects increases?

Back

The force of gravity decreases.

Front

What is the weight of a 100-pound person on Earth on Jupiter?

Back

300 pounds, because Jupiter has three times the gravity of Earth.

Front

What is an example of a gravitational interaction?

Back

The Earth orbits the Sun.

Front

What is weight?

Back

Weight is the force of gravity acting on an object.

Front

What is mass?

Back

Mass is the amount of matter in an object.