Across
- 1. One _________ is equal to the average distance from the Earth to the Sun.
- 5. Forces that are equal in size but opposite in direction are called _______
- 8. Satellites closer to Earth orbit ______ than those farther away.
- 11. Each planet has a different ___________ pull, causing objects to weigh differently on each one.
- 12. Any push or pull is a _________.
- 15. _______ is a regular, repeating path that one object in space takes around another one
- 16. _______ is any moon, planet, or machine that is in orbit around a planet or star
- 17. is the natural force that causes things to fall towards the earth.
- 18. A measurement of the amount of matter something contains is known as ______
Down
- 2. Forces that cause a change in the motion of an object are _____________
- 3. The smaller the mass of a planet or a star, the _______ its gravitational pull.
- 4. Earth's orbit is not a perfect circle. It is ______, or slightly oval-shaped.
- 6. If gravity suddenly stopped working, everything would drift off into space in a _________ path.
- 7. The measurement of the pull of gravity on an object is known as ______.
- 9. Terrestrial planets are those with orbits between the sun and the asteroid belt. These are also known as the______ Planets
- 10. orbit the sun, have a nearly spherical shape and have a mass much larger than the total mass of all other objects.
- 13. Gas giants and ice giants that orbit outside the asteroid belt are also called _________ planets.
- 14. _________ satellites are made by humans and launched into space.
- 16. The closer objects are to each other, the __________ the gravitational pull.