Science

5. - The movement of an object around another object
7. - A measure of the force of gravity on an object
8. - Either of the two days of the year on which the sun reaches its greatest distance north or south of the equator
10. - A system of organized time that defines the beginning, length, and divisions of a year
13. - The tendency of an object to resist a change in motion
14. - An imaginary line that passes through a planet’s center and its north and south poles, about which the planet rotates.

1. - The attraction force between objects: the force that moves objects downhill
2. first law of motion - The scientific law that states that an object at rest will stay at rest and an object in motion with a constant speed and direction unless acted on by a force
3. - A push or pull exerted on an object
4. - The spinning motion of a planet on its axis
6. of universal gravitation - The scientific law that states that every object in the universe attracts every other object
9. - The path of an object as it revolves around another object in space
11. - Either of the two days of the year on which neither hemisphere is tilted towards or away from the sun
12. - The amount of matter in an object