Across
- 4. Property that allows work to be done
- 5. Device that changes force or direction
- 6. Mass times velocity
- 8. Energy cannot be created or destroyed
- 11. Momentum remains constant without external force
- 12. Force an object exerts on a support
- 15. Any object moving under gravity
- 18. Force multiplied by time
- 20. Collision with distortion and heat
- 23. Law where intensity weakens with distance squared
- 24. Useful work divided by total energy input
- 25. Speed needed to escape gravity
- 26. Condition of having no support force
- 27. Energy due to position
- 29. Force times distance
Down
- 1. Attractive force between masses
- 2. Work equals change in kinetic energy
- 3. Impulse equals change in momentum
- 7. Law stating all masses attract
- 9. Collision with no lasting deformation
- 10. Curved path of a projectile under gravity
- 13. A projectile that orbits a larger body
- 14. Friction from motion through air
- 16. Rate of change of velocity
- 17. Oval path followed by a satellite
- 19. Converts chemical energy into electricity
- 21. Rate of doing work
- 22. Energy of motion
- 28. Simple machine with a fulcrum