Unit 4 Exam

This FORCE pulls things.  It PULLS things into orbit around the sun. 

• Newton
• gravity
• weight
• path

What is the rotation of the Earth responsible for?

• Day/Night

• Seasons

• Year

• Month

What is the tilt on the Earth's axis responsible for?

• Day/Night

• Seasons

• Month

• Year

What model of the solar system states the sun is the center

• Geocentric Model
• Heliocentric model
• Biocentric modal
• Hydrocentric  model

In which type of model are the Sun, other planets, and the Moon in orbit around the Earth?

• heliocentric model
• tetrahedral model
• concentric model
• geocentric model

What holds the planets in their orbits around the sun?

• gravity
• speed
• string
• air currents

Name the planets in order from the one closet to the Sun

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

What is the time it takes for an object to spin (on its axis) in a circle

• Revolution
• Rotation
• Spin
• Turn

What is the time it takes an object to go around the Sun?

• Rotation
• Revolution
• Spin
• Turn

Why does the moon's gravitational pull have more of effect on tides than the sun's gravitational pull?

• they are the same
• the moon is larger than the sun
• tides are not caused by the moon
• the moon is closer to the Earth than the sun