Electromagnetic Spectra Article Questions

1. 1) True or False: White light from the sun can be separated into a rainbow of colors.

• True

• False

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2) What can break white light into the colors of the rainbow?

• glass

• water droplets

• mirrors

2. 3) Electromagnetic waves...

• require a medium

• do not require a medium

4) What is the range of wavelengths for visible light?

• 4 - 7 nm

• 100 - 400 nm

• 400 - 700 nm

• 4,000 - 7,000 nm

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5) You tell which substances are creating the light of the sun or a lightbulb when an atom's energy levels change. The ______________________ can identify different atoms and molecules.

• pattern of wavelengths

• amount of reflection

• amount of absorption

• amount of refraction

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6) You look into a spectroscope at an unknown type of lightbulb. You see a thin yellow line at 590 nm. What elements could be making up the light source?

• potassium, lithium, and strontium

• lithium and sodium

• strontium and barium

• sodium, potassium, and barium

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7) Visible light is just a small portion of the millions of ___________ that make up the electromagnetic spectrum.

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8) Select the option that organizes the electromagnetic spectrum from longest wavelength to shortest wavelength.

• gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, radio waves

• infrared, microwaves, ultraviolet, radio waves, x-rays, gamma rays

• radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, gamma

9) Short wavelengths are associated with high _______ and high energy.

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10) What type of electromagnetic wave causes sunburns and skin damage?

• visible light

• ultraviolet

• gamma

• x-rays