Across
- 4. Particles of light that carry energy.
- 6. The height of a wave's crest.
- 7. The distance between successive crests of a wave, such as electromagnetic radiation.
- 8. The number of complete wavelengths that pass a point in a given time.
- 9. A shift in the spectrum of an object toward shorter wavelengths.
- 11. The portion of the electromagnetic spectrum that is visible to the human eye.
Down
- 1. A form of energy that exhibits wavelike behavior as it travels through space.
- 2. The process by which an object takes in electromagnetic radiation.
- 3. A shift in the spectrum of an object toward longer wavelengths.
- 5. An instrument that collects electromagnetic radiation from the sky and concentrates it for better observation.
- 10. The speed at which light travels in a vacuum, approximately 3.00 x 10^8 meters per second.
- 12. The production and discharge of something, such as radiation.