Diffraction

Which picture shows diffraction AND interference?

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NGSS.HS-PS4-1

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When the crest of one wave passes through the trough of another wave, ______ takes place.

• resonance
• diffraction
• destructive interference
• constructive interference

In ________ interference, the energy of the combined wave is greater than the energy of each of the two waves.

• destructive
• rarefaction
• resonance
• constructive

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NGSS.MS-PS4-1

When a wave moves around a barrier or though an opening it is known as what?

• Diffraction

• Refraction

• Rarefaction

• Destruction

Laser is a monochromatic source of light- they have only one color. This means all the light waves have...

• same wavelength

• same phase

• same intensity

• same direction

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NGSS.HS-PS4-1

The full spectrum of light energy is called the__________

• broad spectrum
• electromagnetic spectrum
• helium spectrum 
• natural light spectrum

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NGSS.HS-PS4-1

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EM waves have the same speed but different:

• frequency & medium 
• wavelength & frequency
• medium & wavelength
• color & medium

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NGSS.HS-PS4-1

Which wavelength of visible light has the lowest energy?

• Red
• Yellow
• Orange
• Blue

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NGSS.HS-PS4-1

Which of the following types of radiation has the shortest wavelength and the highest frequency?

• Radio Waves
• Infrared
• Visible
• X-Rays

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NGSS.HS-PS4-1

Why is violet alway on the underside of a rainbow or closest to a light source in artificial rainbows? Click all that apply. (3)

• It has the shortest wavelength

• It has the longest wavelength

• It "hits" more objects and gets bounced more

• It bends faster due to higher frequency

• It bends slower due to lower frequency

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NGSS.HS-PS4-1