Electromagnetic Spectrum

In your own words, define wavelength:

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Answer explanation

Wavelength refers to the distance between crests or troughs of a wave.

In your own words, define frequency:

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Answer explanation

Frequency refers to how often a crest passes a point per second. Measured in Hertz.

When you decrease the wavelength of the electromagnetic wave, what happens to the frequency?

• There is no change in frequency
• Frequency increases
• Frequency decreases

When you decrease the wavelength of the electromagnetic wave, what happens to the energy?

• There is no change in energy
• Energy increases
• Energy decreases

Change the wavelength to 700 nm. What color is your light (electromagnetic wave)?

Change the wavelength to 380 nm. What color is your light (electromagnetic wave)?

What color of visible light has the highest frequency?

• Violet
• Red
• Orange
• Yellow
• Green

What color of visible light has the highest energy?

• Violet
• Red
• Orange
• Yellow
• Green

What color of visible light has the shortest wavelength?

• Violet
• Red
• Orange
• Yellow
• Green

What color of visible light has the longest wavelength?

• Red
• Orange
• Yellow
• Green
• Blue