Gravity in the Solar System

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, such as a planet and the sun.

Front

What would happen to the planets if there was no gravity?

Back

They would all fly off into space because of inertia.

Front

What is inertia?

Back

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

Front

If a planet does not have enough inertia, what would happen to it?

Back

It would get pulled into its star.

Front

If a planet has too much inertia, what would happen to it?

Back

It would fly off into space.

Front

How does distance from the sun affect a planet's speed?

Back

The closer a planet is to the sun, the faster it travels.

Front

Which planet has the most gravity?

Back

Jupiter has the most gravity.

Front

What is the relationship between gravity and mass?

Back

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

Front

What is the effect of gravity on objects in space?

Back

Gravity keeps planets in orbit around stars and moons in orbit around planets.

Front

What is a gravitational field?

Back

A gravitational field is a region of space around a mass where other masses experience a force of attraction.