Across
- 1. How high or low a sound is
- 6. Unit used to measure work or energy
- 9. Energy you can hear
- 11. Type of wave that needs a medium
- 13. Simple machine that changes direction of force
- 14. Waves canceling each other
- 18. Force opposing motion through air
- 20. How long motion takes
- 21. Tool used to measure mass
- 22. A push or a pull
- 24. Form of energy that allows sight
- 26. Force pulling objects toward Earth
- 31. Amount of matter in an object
- 32. Simple machine with a fulcrum
- 36. Change in velocity
- 38. Object that separates light
- 40. Maximum falling speed
- 41. A repeating movement that transfers energy
- 42. Distance traveled per time
- 45. Bouncing of light
- 47. Speed with direction
- 48. Energy of motion
- 49. Direction friction acts against motion
Down
- 2. Slanted surface
- 3. Location of an object
- 4. Force applied over a distance
- 5. Bending of light
- 7. Parts of visible light
- 8. Number of waves per second
- 10. Mass per volume
- 12. Volume of sound
- 13. Stored energy
- 15. Way something moves
- 16. Simple machine that splits objects
- 17. Resistance to change in motion
- 19. Ability to do work
- 23. Part of the eye that detects light
- 25. Overlapping of waves
- 27. Simple machine that helps lift objects
- 28. Waves combining to make a larger wave
- 29. SI unit of distance
- 30. How well a machine works
- 33. Place with no matter
- 34. How far an object moves
- 35. Force that slows motion
- 37. Height of a wave
- 39. Rate of doing work
- 43. Flat surface of an inclined machine
- 44. Change in position over time
- 46. Tool that makes work easier