Across
- 2. not moving
- 4. pushes or pulls that make things move
- 6. devices that can make things in motion slow down or stop
- 8. not rough or bumpy
- 10. force that pulls things down toward the ground
- 11. the pull of gravity on an object
- 12. movement; the act of moving
- 13. to hold tightly
Down
- 1. the force that happens when to objects rub together
- 3. how fast somebody or something moves
- 5. a belt in a car that holds a person in the seat
- 7. bumpy; not smooth
- 8. a person that is jumping from a plane with a parachute
- 9. to put something in a position so that it does not fall