Across
- 2. an inclined plane wrapping around a cylinder
- 5. the energy output, divided by the energy input, and expressed as a percentage
- 8. the reactionary force
- 9. any object that once projected continues in motion by its own inertia
- 13. a machine that uses more than one simple machine
- 15. the resistance of an object to change
- 16. device that changes the direction or magnitude of a force
- 17. a mechanical device that changes the direction or magnitude of a force
- 18. goes with a wheel
- 21. wheels with teeth
- 24. a ramp
- 25. the pivot point on a lever
- 26. overall force acting on an object
- 27. two inclined planes facing each other to split in between things
- 29. the initial force
- 30. has three classes
Down
- 1. the force acting against an object that is sliding
- 3. force that is applied to an object moves that object
- 4. the standard unit of work or energy
- 6. balance
- 7. a slowing down or stopping of a force
- 10. mass times velocity
- 11. the force on a moving object
- 12. ratio of the output force to the input force
- 14. goes with an axle
- 19. the force exerted on a surface or body
- 20. the force on a resting object
- 21. the natural force pulling something to the Earth
- 22. the frictional force air
- 23. uses a rope and a wheel to pull objects
- 28. F= M x A