Gravity in the solar system 1

Front

What keeps the planets in orbit around the sun?

Back

Gravity and inertia are the two forces that keep the planets in orbit around the sun.

Front

What does a large mass mean for an object's gravity?

Back

An object that has a lot of mass will have a lot of gravity.

Front

What would happen if the Earth didn't have inertia?

Back

If the Earth didn't have any inertia, it would crash into the sun.

Front

What two factors does gravity depend on?

Back

Gravity depends on mass and distance.

Front

What is mass?

Back

Mass is the amount of stuff (matter) an object has.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

How does distance affect gravity?

Back

The farther apart two objects are, the weaker the gravitational pull between them.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object's mass.

Front

Can an object have gravity if it has no mass?

Back

No, an object cannot have gravity if it has no mass.

Front

What is the gravitational force between two objects?

Back

The gravitational force is the attraction between two objects due to their mass.