Across
- 2. Light: a form of electromagnetic (EM) radiation, as are radio waves, infrared radiation, ultraviolet radiation, X-rays and microwaves.
- 5. The change in direction of a wave when it enters a new medium with a different wave speed.
- 7. Wave: A transfer of energy through a medium without a transfer of the medium.
- 8. A vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
- 9. The number of crests or compressions in a wave that pass a point per unit time; for sound waves, measured in hertz.
- 10. Region of a longitudinal wave where the particles of the medium have the highest density.
- 14. Spectrum: A continuous range of wavelengths that includes all of the types of electromagnetic waves.
- 16. Wave: A wave that causes a medium to vibrate in a direction perpendicular to the direction in which the wave travels.
- 18. How high or low a sound is.
- 19. Of Wave: The distance a wave travels (crest, trough, crest) in a given period of time. Can be calculated by multiplying wavelength by frequency.
- 21. The time required to complete one cycle of a wave.
- 24. when you turn up the intensity of light you are increasing the number of photons per second that are emitted by the light source.
- 25. The height of the crest in a transverse wave; a measure of how compressed the compressions are in a longitudinal wave.
- 26. the amount of space that a substance or object occupies, or that is enclosed within a container: especially when great.
Down
- 1. Caused by an earthquake or vibrations inside Earth.
- 3. The material through which a mechanical wave travels.
- 4. A tiny particle or packet of light energy.
- 6. When the medium and energy in a wave is turned back from a hard surface.
- 11. Radiant energy that can travel through a vacuum and through matter in the form of waves.
- 12. :A disturbance that travels through a medium from one place to another.
- 13. The spreading out of energy as it travels away from the source of the energy. The decrease in intensity as distance from an energy source increases.
- 15. The ability of a wave to spread out or change direction as it passes through an opening or around an obstruction.
- 17. The amount of electricity, light, heat, or sound energy per unit area per unit time.
- 20. Wave: A wave that causes a medium to vibrate in a direction parallel to the direction in which the wave travels.
- 22. A measurement used to compare the intensity of different sounds. Each increase of 10 decibels is a sound intensity 10 times greater.
- 23. Space that contains no matter (Outer space).