Motion Vocabulary

1. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
4. When the speed of an object remains the same
6. When two forces are the same strength but act in opposite direction
10. The force of attraction between any two bodies is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them.
12. The speed of something in a given direction
14. the resistance that one surface or object encounters when moving over another.
15. the movement of something from its place or positon
16. large body of matter with no definite shape.
17. kinectic energy and movement
19. rate of change of position of an object in any direction.
20. not impeded by or creating friction; smooth.
21. An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.

1. the acceleration of an object in free fall within a vacuum (and thus without experiencing drag).
2. when the object is moving in the positive direction, but the rate of change of velocity is negative
3. space between two objects or people
5. Not in movement or action
7. a course along with something or someone moves
8. indefinite progression of time
9. strength or energy as an attribute of physical action or movement.
11. capacity to gain speed in a short period of time
13. a place where something is located or put at.
18. A tendency to do nothing