EM Waves Review

What type of EM wave has the highest energy?

• Gamma

• Xrays

• Infrared

• Radio

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What type of wave has the longest wavelength

• Gamma

• Xrays

• Infrared

• Radio

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Which has a shorter wavelength?

• Ultraviolet

• Violet

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Which has a higher frequency?

• Infrared

• Red Visible Light

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What visible light color refracts the easiest?

• Blue

• Red

• Green

• Yellow

Why do sunsets/sunrises make the sky look red/orange?

• The sun is changing colors

• The sun produces different light at different times of the day

• The sunlight travels through more atmosphere refracting more light

• The sun is always red/orange

What is the speed of light?

• 8x10^3

• 3x10^8

• 3x10^-8

• 3.8x10^8

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What is the speed of an electromagnetic wave?

• 8x10^3

• 3x10^8

• 3.8x10^8

• 3x10^-8

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What is true for BOTH sound & light waves?

• They both need a medium to travel through

• They both are transverse waves

• They are both longitudinal waves

• They both carry energy

What type of wave is a light wave?

• Longitudinal

• Pressure

• Transverse

• Mechanical

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