Test #2 - Gravity and Inertia Assessment

First and Last Name

Tags

CCSS.RF.K.2E

1. Describe in detail what would happen if the Sun suddenly disappeared from the solar system. Write at least 3 sentences to explain your position.

2. Explain how the moon stays in orbit around the Earth and doesn't crash into us. Write at least 3 sentences about what is happening.

3. If Earth's mass decreased to one half its original mass, with no change in radius, then your weight would

• stay the same
• decrease to one half your original weight
• decrease to one quarter your original weight
• none of the above

4. An object with more mass has more gravity.

• true
• false

5. What are the two different factors that affect the gravitational force of different objects?

• size and distance
• mass and size
• density and distance
• mass and distance

6. Gravity causes what on Earth?

• Weight
• Mass
• Volume
• Atmosphere

7. Which of these planets has more gravity?

• Jupiter
• Earth

8. What OBJECT in the solar system has more gravity than Jupiter and Earth?

• The moon
• The Sun
• Saturn
• Pluto

9. The two factors that combine to keep Earth and the moon in their orbits are-

• Speed and inertia
• Gravity and inertia
• Gravity and speed
• Axis and inertia