17.1 Test Review

Match it! Select the correct answer from the pull down...Good luck!

One AU is equivalent to 150 million kilometers. If Pluto is 40 AU from the Sun, how far is Pluto from the Sun measured in kilometers?

The length of a planet’s day is defined by its:

The length of a planet’s year is defined by its:

Orbital motion of the planets is caused by the interaction between inertia and:

The Sun, planets and their moons, and a large collection of smaller objects such as asteroids, comets, and meteors are, together, called the:

If an astronaut weisghts 1200 N on Earth, on the Moon he will weight about:

The force of gravity between two objects will be greatest if their masses are:

The strength of the gravitational force between objects is determined by the distance between the objects and their