Space Tutorials

A push or pull exerted on an object is called a.....

• force

• inertia

• motion

• space

The attractive force between objects is called....

• force

• Gravity

• inertia

• motion

The greater the pull of gravity on an object, the greater the ............. of that object.

• mass

• weight

• gravity

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

• more
• same
• dosen't matter
• less

The shape of a planet's orbit around the sun is best described as _________.

• circular
• elliptical
• spiral
• conical

What is important about the Asteroid Belt with regard to the planets?

• It divides the inner and outer planets

• It keeps the planets from floating away

• It protects the outer planets from the heat of the sun

• It's not important at all

Objects with greater mass have less gravity than those with lesser mass

• True

• False

Gravity is greatest when two objects are larger and closer together.

• True

• False

Gravity is necessary in the formation of -

• asteroids

• planets

• galaxies

• all of the above

What prevents planets from drifting off into space and keeps it in the planets in our Solar System?

• Gravity

• Weight

• Friction

• Forward Motion