Across
- 4. A wave in which the disturbance is perpendicular to the direction the wave travels is called?
- 6. A material that allows almost all of the light striking it to pass through and through which objects can be seen clearly is called?
- 8. The amount of energy that passes through a square meter of space in one second is called?
- 9. A wave that can travel through space or through matter is called?
- 11. The change in direction of a wave as it changes speed, moving from one medium into another, is called?
- 15. A material that allows most of the light that strikes it to pass through but through which objects appear blurry is called?
- 17. A wave that makes the particles of a medium move back and forth parallel to the direction the wave travels is called?
Down
- 1. An electromagnetic wave with a wavelength shorter than a microwave but longer than light is called?
- 2. A material through which light does not pass is called?
- 3. The unit to measure sound intensity or loudness is called?
- 5. An electromagnetic wave with a slightly shorter wavelength and higher frequency than light is called?
- 7. The maximum distance of a wave varies from its rest position is called?
- 10. The region of a longitudinal wave where the particles of the medium are closest together is called?
- 12. The number of wavelengths that pass a point each second is a wave's?
- 13. The region of a longitudinal wave where the particles are farthest apart is called?
- 14. A low-frequency, low-energy electromagnetic wave that has a wavelength longer than about 30cm is called?
- 16. The perception of how high or low a sound seems is called?