Match the correct laws to the examples in which they apply. Use each law only once.

- Newton's first law of motion
- Newton's second law of motion
- Newton's third law of motion
- Kepler's first law of planetary motion
- Kepler's second law of planetary motion
- Kepler's third law of planetary motion

1. Explains why Earth's orbital speed varies over the course of each year.
2. Explains why Earth's distance from the Sun varies over the course of each year.
3. Tells us that, when you are standing, the ground is pushing up on you with a force that precisely balances the downward force of your weight.
4. Explains why Earth orbits the Sun at a faster average speed than Mars.
5. Explains why applying a force to a baseball with your arm can cause the baseball to accelerate from rest to the speed at which it leaves your hand.
6. Explains why a spaceship with no forces acting on it will continue moving even if it has no fuel.