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

• blue

• red

• violet

• yellow

The illustration below shows a portion of the electromagnetic spectrum. Which of the following labels should be placed in the shaded box in the illustration?

• TV waves

• Visible light

• cosmic rays

• sound

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

• Speed

• Wavelength

• Temperature

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

• All radiation is visible.

• All radiation is invisible.

• Radiation is the transfer of energy as waves.

• Radiation travels faster than the speed of light

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

Electromagnetic radiation has a wide range of frequencies and wavelengths. Look closely at the electromagnetic spectrum shown in the illustration. What conclusion can you make about electromagnetic radiation from this illustration?

• Gamma rays have the lowest frequency.

• Some gamma rays can have the same frequency as X-rays.

• Visible light consists of wavelengths with the widest range of frequencies.

• The shorter the wavelength is, the lower the frequency of the electromagnetic radiation.

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NGSS.HS-PS4-1