Across
- 4. Speed in a given direction key to momentum
- 7. Upward force opposing gravity on an aircraft
- 8. Newton's three principles of motion
- 10. Propelling force, as from a rocket engine
- 11. A common action that applies force
- 12. A measure of an object's inertia in motion
- 13. Pulling force through a string or cable
Down
- 1. Rate of change of velocity
- 2. Resistance to change in motion or rest
- 3. When objects impact, changing momentum
- 5. The trajectory of an object under forces
- 6. Tiny particle where forces operate
- 9. How fast an object moves
- 12. SI unit of distance, used in force calculations