Solar System

The strength of the force of gravity depends on

• the masses of the objects and their speeds

• the masses of the objects and the distance between them

• the weight of the objects and the speeds

• the masses of the objects and their weights

The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called

• orbital speed

• mass

• inertia

• gravity

The solar system formed from

• an expanding galaxy

• a giant cloud of gas and dust

• an enormous explosion

• a black hole

Small asteroid-like bodies that became the building blocks for the planets are called

• planetesimals

• comets

• meteoroids

• open clusters

All objects are attracted to each other by the force of

• weight

• mass

• inertia

• gravity

What is the correct order of the planets (closest to sun to furthest from sun)?

• Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Mercury

• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

• Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Venus, Mercury

• Jupiter, Saturn, Uranus, Neptune, Mercury, Venus, Earth, Mars