Wavelength and Electromagnetic Spectrum

The relationship between wavelength and frequency is λ=c/f.  Calculate the wavelength of light that has a frequency of 5.2 x 10¹² Hz. The speed of of light is 3.0x 10⁸ m/s.

• 5.8 x 10 ^-5 m
• 5.8 x 10 ^-7 m
• 5.19 x 10 ¹⁴ m
• 1.56 x 10 ²³ m

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NGSS.HS-PS4-1

High frequency waves have _________ wavelength.

• varying
• high
• the same
• low

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NGSS.HS-PS4-1

Solve this problems using the equation: C = λf
If an AM radio station broadcasts at 9.95 x 10⁵ Hz, what is the wavelength of this radiation?

• 6.59 x 10^-28 m
• 1.01 x 10^-6 m
• 3.32 x 10^-3 m
• 301 m

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NGSS.HS-PS4-1

The distance between two crests or two troughs of a wave is called:

• frequency
• amplitud
• wavelength
• hertz

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Put the visible light colors in order from longest wavelength to shortest wavelength

• Violet, Blue, Green, Orange, Yellow, Red
• Red, Yellow, Green, Orange, Violet, Blue
• Red, Orange, Yellow, Green, Blue, Violet
• Blue, Violet, Green, Yellow, Orange, Red

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Look carefully at the waves.  Which carries the most energy?

• microwave
• infrared
• ultraviolet
• x-ray

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NGSS.HS-PS4-4

The ________ of a photon of light is ________ proportional to it frequency and ________ proportional to its wavelength.

• amplitude, directly, inversely
• energy, inversely, directly
• energy, directly, inversely
• velocity, inversely, directly

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NGSS.HS-PS4-1

Why do you see lightning from a distant storm before you hear thunder?

• The thunder is produced after the lightning.
• Your eyes react faster than your ears.
• Light travels faster than sound.
• Sound travels faster than light.

Which statement regarding light is true?

• it travels at a constant speed
• its speed depends on temp
• slows down as it moves
• travels fastest through water

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NGSS.HS-PS4-3

Which wave has a greater frequency?

• A
• B

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