Across
- 4. the speed at which the wave travel
- 7. The point where a wave is highest
- 10. a measure of how much of the work put into a machine is changed into useful output work by the machine
- 11. The point where a wave is lowest
- 12. the unit of force
- 15. when waves spread out in circles or spheres
- 16. the time required to complete one cycle
- 17. any device that makes work easier by changing a force
- 19. when the coils of a longitudinal wave are far apart
- 21. a disturbance in electric and magnetic fields
- 22. the force that is applied to the machine
- 24. the ability to do work
- 26. when the coils of a longitudinal wave are close together
- 28. the rate at which work is done
- 30. the energy an object has because of its motion
Down
- 1. the energy an object has because of its position, condition, or chemical composition
- 2. the distance from any point on a wave to an identical point on the next wave
- 3. The ratio of the output force to the effort (input) force
- 5. when the primary and secondary waves are combined
- 6. a material added to the machine to reduce the friction
- 8. a push or a pull exerted on an object.
- 9. the use of force to move an object some distance.
- 11. the type of mechanical waves where particles move up and down
- 13. disturbances that transfer energy from one place to another
- 14. chemical energy of food
- 15. the unit of power
- 18. a measure of how far the particles in the medium move away from their normal rest position
- 20. the unit of work and energy
- 23. the material through which a wave can travel
- 25. the unit of frequency
- 27. the force produced by the machine
- 29. how many cycles occur in an amount of time, usually 1 s