Across
- 1. a push or pull
- 4. when objects slide past each other
- 6. the unbalanced force acting on an objects equals the mass times acceleration
- 7. friction between moving surfaces
- 8. matter resists any change in motion
- 10. the opposing force that occurs between objects
- 11. friction between stationary surfaces
Down
- 1. strong force, electromagnetic force, weak force, and gravity
- 2. tendency of an object to resist a change in motion unless an outside force acts on it
- 3. the force that occurs between objects that are touching
- 5. when a rounded object rolls over a flat surface
- 9. the combination of all of the forces acting on an object