Unit 4 Electron Structure (optional)

Which color has the longest waves?

• red

• orange

• yellow

• green

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The portion of the electromagnetic spectrum that humans can see is called:

• radio waves

• visible light

• gamma rays

• x-rays

When wavelength increases...

• energy decreases

• energy increases

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A certain photon of light has a wavelength of 4.22x10^-7 m. What is the frequency?

• 7.11x10¹⁴ Hz
• 7.11Hz
• 1.41x10^-15
• -1.41x10¹⁵

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A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low
• high, high
• low, high
• low, low

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Which section of the spectrum is the ONLY one we can see?

• X-rays
• Visible Light
• Gamma Rays
• Ultraviolet Rays

The blue section of the wave is measuring _________________.

• wavelength
• crest
• trough
• amplitude 

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Light behaves like both a particle and a ______.

• Mass
• Wave
• Current

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What happens to the energy of a photon as the frequency of the wave increases? 

• The energy increases
• The energy decreases
• The energy stays the same 

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What is the energy of a quantum of light with a frequency of 7.39x10¹⁴Hz.

• 4.88x10¹⁹
• 4.88x10^-19
• 2.22x10²³
• 2.22x10^-23

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