Solar System Study Guide

What two forces keep the Earth in orbit around the sun?

• mass

• gravity

• inertia

• magnetism

Which planet would have the most gravitational force?

• Jupiter

• Saturn

• Mercury

• Earth

List the planets in order from distance from the sun (closest to furthers)

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

• Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

• Mars Jupiter Saturn Uranus Neptune Mercury Earth Venus

• Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto

List 2 factors that cause a planet to have moons.

• Mass

• Gravity

• Size

• Distance

The bigger the mass the _________ the force of gravity is

• stronger

• weaker

• same

The smaller the mass ___________ the force of gravity is

• stronger

• weaker

• same

List the following items from larger to smaller: solar system, planets, asteroids, galaxies, universe, Stars(sun)

• Asteroids Planets, sun, solar system, galaxy, Universe

• Universe Solar System Asteroids Planets Galaxy

• Sun Solar System Galaxy Planets Asteroids Universe

• Universe Galaxy Solar System Stars(Sun) Planets Asteroids

All of the planets and asteroids orbit the _______________________

• Earth

• Moon

• Jupiter

• Sun

What are all the inner planets made up of?

• gas

• rock

• liquid

What are all the outer planets made up of?

• gas

• rock

• liquid