Solar System Grade Recovery

Multiple Choice

What causes the motion of the planets around the Sun?

• astronomical unit

• gravity

• period of revolution

• period of rotation

Multiple Choice

What are the differences between the geocentric model and heliocentric model of the solar system?

• The order of the planets

• The sun at the center for the geocentric and earth at the center for heliocentric

• The sun

• The earth is at the center of geocentric and the sun is at the center for heliocentric

Multiple Choice

An astronomer observes a planet object using a powerful telescope. The object appears to be in orbit around the Sun. It is rocke and has an irregular shape. What is the object?

• Asteroid

• Comet

• Meteor

• Planet

Multiple Choice

What causes the motion of planets?

• astronomical unit

• gravity

• Period of revolution

• period of rotation

Multiple Choice

What factors affect the strength of the gravitational forces between objects?

• Mass and distance

• Distance and Matter

• Luminousity

• orbit

Multiple Choice

If a person weighted 80 lbs on Earth, their weight would be affected on Mars by

• increasing

• stay the same

• decrease

• mass would change

Multiple Choice

What inner planets are in order from the sun?

• Jupiter, Saturn, Uranus, Neptune

• Mars, Earth, Mercury, Venus

• Mercury, Venus, Earth, Mars

• Earth, Mercury, Venus, Earth

Multiple Choice

Which charcterizes planets revolving around a stationary Earth?

• geocentric model

• heliocentric model

• period of revolution

• period of rotation