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The illustration below shows what happens when light is passed through a prism. What type of light passed through the prism?

• infrared light

• ultraviolet light

• white light

• yellow light

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When NASA scientists communicate with the mars rover, shown in the illustration, they use electromagnetic radiation with a long wavelength and low energy. Which type of radiation do they most likely use?

• X-rays

• radio waves

• infrared waves

• visible light

Visible light is made up of a spectrum of many different colors as shown in the illustration below. Which color of visible light has the longest wavelength in nanometers (nm)?

• blue

• yellow

• violet

• red

The illustration below shows the different colors and wavelengths of visible light. Blue-green light can be found in what wavelength nanometer (nm) range?

• 400 nm – 490 nm

• 575 nm – 700 nm

• 425 nm – 575 nm

• 575 nm – 585 nm

White light is made up of a spectrum of many different colors. What property is used to divide the various colors in the spectrum?

• density

• wavelength

• speed

• temperature

The electromagnetic spectrum consists of all the wavelengths of radiation that come from the sun. What can electromagnetic waves do that sound waves cannot do?

• change frequency

• travel through a solid object

• travel through a vacuum

• change wavelength

The sun’s energy arrives as radiation. Which statement about electromagnetic radiation is correct?

• All radiation is visible.

• Radiation travels faster than the speed of light.

• Radiation is the transfer of energy as waves.

• All radiation is invisible.

Radio waves have a different wavelength than X-rays. Yet, both radio waves and X-rays travel as electromagnetic radiation through the vacuum of space at the same speed. Why?

• Radio waves have a shorter wavelength than X-rays.

• Radio waves have the same frequency as X-rays.

• All electromagnetic radiation travels at the same speed through space.

• Radio waves and X-rays interact with each other.

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How is white light different from the rest of the electromagnetic spectrum?

• White light has the same wavelength.

• White light has a spectrum of colors.

• White light can travel through both empty space and matter.

• White light is invisible.

How is ultraviolet light different from the light emitted by a flashlight?

• Ultraviolet light is brighter than the light from a flashlight.

• Ultraviolet light is invisible to the human eye.

• Only light from a flashlight can travel through a vacuum.

• Ultraviolet light has a longer wavelength than the light from a flashlight.

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