Across
- 3. A substance used for minimizing friction.
- 4. explains that an object in motion will stay in motion at the same speed and direction until another force acts on it.
- 7. combination of all forces acting on an object
- 10. stated laws that describe the effects of forces on motion
- 11. One object pushes on a second object, the second object pushes back on the first with a force that is equal in size and opposite in direction.
Down
- 1. that makes motion more difficult between two materials that are in contact because of microscopic hills and valleys on the surfaces of the objects.
- 2. A force acting on an object causes the object to speed up in the direction of the force.
- 5. measurement of the force that gravity pulls on an object.
- 6. Force of attraction between objects.
- 8. forces that are equal in size and in opposite direction
- 9. push or pull one object exerts on another