Across
- 3. / the distance an object travels per unit of time
- 5. friction / acts between objects that are not moving
- 8. friction / occurs when a solid object moves through a fluid
- 9. friction / when an object rolls across the surface
- 10. / a push or pull
- 13. / the rate at which velocity changes with time
- 14. / the strength of force
Down
- 1. / a measure of the amount of matter in an object
- 2. / a measure of the force of gravity on an object
- 4. force / the combination of all the forces on an object
- 6. / resistance to change in motion
- 7. / speed in a given direction
- 8. / the force that two surfaces exert on each other when they rub against each other
- 11. friction / occurs when two solid surfaces slide over each other
- 12. / a force that pulls objects towards each other