Across
- 2. push or pull
- 3. Always present
- 5. change in velocity
- 6. force that resists motion when an objects surface comes into contact
- 9. proportional to mass and velocity
- 10. resistance to change in motion
- 12. changes an objects momentum
- 14. has magnitude only
Down
- 1. has both magnitude and direction
- 2. for every action there is an equal and opposite reaction
- 4. represented by arrows
- 7. sum of all forces
- 8. measure of how fast an object moves
- 9. measure of amount of matter in a body
- 11. another surface
- 13. object thrown whose only acting force is gravity