Across
- 1. the intensity of sound
- 6. a device that helps get work done
- 8. height of a wave
- 9. a unit of linear measure equal to one twelfth of a foot
- 12. measure of sound/loudness
- 14. a movable incline plane
- 16. a rigid bar that moves on a fulcrum
- 18. ten ten toes off board
- 19. the number of waves at a given point
Down
- 2. an incline plane wrapped around a pole
- 3. a force on an object
- 4. a wave bending around a barrier
- 5. the force from earth
- 7. one thousandth of an inch
- 10. the SI base unit of length
- 11. a wheel with a rope to help lift an object
- 13. of reflection state that the angle of incidence equals the angle of reflection
- 15. a reflected sound
- 17. top of a wave