Quiz

1. How do we describe motion?
2. How is mass different from weight?
3. How did Newton change our view of the universe?
4. What are Newton's three laws of motion?
5. What keeps a planet rotating and orbiting the Sun?
6. Where do objects get their energy?
7. What determines the strength of gravity?
8. How does Newton's law of gravity extend Kepler's laws?
9. How do gravity and energy allow us to understand orbits?
10. How does gravity cause tides?