Waves Review

How is wavelength measured?

• From trough to crest (B to D)

• From the center line to the crest (B to C)

• From the crest of one wave to the crest of the next (B to F)

• From one end of the wave to the far end of the wave (A to H)

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True or False: 
Frequency is how many waves pass per second. 

• True
• False

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If you increase frequency what happens to the wavelength?

• Wavelength increases
• Wavelength decreases
• Wavelength remains the same

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When amplitude is increased how will it effect a light wave?

• Increase fequency
• Increased brightness
• Increases volume
• Decreases brightness 

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Why are oranges orange...?

• Because they emit orange light from their cells

• Because they absorb all visible wavelengths except orange (630-605 nm) which is reflected back into your eyes

• Because they are actually a combination of some green and a little more red light

• Because orange is the yummiest color

What do we call the section of the EM spectrum that humans can perceive? 

• Ultraviolet
• The rainbow
• The visible spectrum
• Black and white

What structure in eyes allows animals to perceive color?

• Optic nerve
• Cornea
• Cones
• Iris

What is the range (in nano meters) of the visible spectrum?

• 100- 700 nm
• 550-950 nm
• 200-800 nm
• 700-400 nm

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When you see the color red, around what wave length are you seeing?

• 720- 650 nm
• 600- 500 nm
• 450- 340 nm
• 660- 400 nm

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What is really happening when you see white light?

• You are seeing white light
• You are seeing a rainbow that's been combined
• You are seeing equal parts red, green, and blue light
• You are only seeing florescent light

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