Planetary Motion

What is the name of this model?

Earth's spinning on its axis is called its _____________.

When a body in space travels around a larger body in space it is said to _____________ around the larger body.

Planets orbit the Sun in a shape called a(n)

Where is the planet moving faster

When do planets move the fastest?

A year on Jupiter is 4,344 days long. This tells you how long it takes

What causes Earth’s year to be shorter than Jupiter’s year?

The law of universal gravitation is credited to whom?

Two factors effecting the magnitude of the force of gravity between 2 objects are _____ and _______.

Complete the following statement: The farther away two planets are the _______ the gravitational force between them.

If one of two objects increases its mass, it _________ the gravitational pull between the two objects

the tendency of an object to resist a change in its motion

Because of inertia, a moving object will keep ________.

What keeps the planets in orbit around the sun?

What would happen to Earth if there were no inertia?

What would happen to Earth if there were no gravity?