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What are the seven colors associated with visible light?
1. red, orange, yellow, green, blue, purple pink
2. red, orange, yellow, green, blue, white, black
3. red, orange, yellow, green, light blue, dark blue, violet
4. red, orange, yellow, green, blue, indigo, violet
How do you measure wavelengths?
1. trough to crest
2. waves in a given time
3. crest to crest
4. the time of one cycle
As a distant star moves away from Earth, the light given off by the star has a measurably
lower frequency. What happens to the wavelength and energy of the photons of light when
the frequency becomes lower?
1. The wavelength becomes longer, and the energy decreases.
2. The wavelength becomes shorter, and the energy decreases.
3. The wavelength becomes longer, and the energy increases.
4. The wavelength becomes shorter, and the energy increases.
Frequency is measured in what?
1. meters
2. hertz
3. ohms
4. seconds
When you see a straw in a glass of water it looks bent, why is this?
1. diffraction
2. reflection
3. refraction
4. polarization
The electromagnetic spectrum consists of many different kinds of electromagnetic waves. Name them in increasing order of energy from left to right.
1. microwaves, radiowaves, visible light, infrared light, gamma rays, ultraviolet light, X-rays
2. microwaves, radiowaves, infrared light, visible light, X-rays, gamma rays
3. radio waves, microwaves, infrared light, visible light, ultraviolet light, X-rays, gamma rays
4. Gamma rays, X-rays, ultraviolet light, visible light, infrared light, microwaves, radio waves
Why do we perceive chlorophyll as green?
1. because it is green
2. because it absorbs green light
3. because it reflects green light
4. because it absorbs yellow light
The energy of a Photon is greatest for
1. visible light
2. ultraviolet light
3. infrared light
1. $wavelength//amplitude$
3. $amplitude//frequency$