• A) Gamma Rays

• B) Ultraviolet

• C) Microwave

• D) Radio waves

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NGSS.MS-PS4-1

• A. Gamma Rays

• B. Ultraviolet

• C. Microwave

• D. Radio waves

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NGSS.MS-PS4-1

Order the list of the radiation types from highest frequency to lowest frequency?

• 3

• Infrared

• 1

• Microwaves

• 2

• Ultraviolet

• 5

• Gamma rays

• 4

• Visible light

Shamari is making transverse waves with a rope. She is moving the rope as quickly as she can, so she isn’t able to increase the frequency anymore. What else could she do to increase the energy of the wave?

• Increase the amplitude

• Increase the wavelength

• Decrease the amplitude

• Decrease the wavelength

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A doctor is using a machine to see inside the human body. The machine uses electromagnetic radiation to show bones and teeth. The electromagnetic radiation likely consists of ​ (a)   -energy waves with high (b)   and short ​ (c)   . Which terms, in order of appearance, best complete the sentences?

• high
• frequency
• wavelength
• amplitude

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NGSS.HS-PS4-1

Sporting events usually bring in large crowds of energetic people. A stadium wave is something crowds can do by having groups of people alternate stretching up to full height and then returning to their seats. The result is a “wave” that appears to travel through the crowd.

If a section of a crowd contained mainly shorter children, what characteristic of the wave would change when the wave reached that section?

• The amplitude would decrease because the wave would not be as tall.

• The amplitude would increase because the wave would not be as tall.

• The wavelength would decrease because the wave would not be as tall.

• The wavelength would increase because the wave would not be as tall.

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NGSS.MS-PS4-1

Sporting events usually bring in large crowds of energetic people. A stadium wave is something crowds can do by having groups of people alternate stretching up to full height and then returning to their seats. The result is a “wave” that appears to travel through the crowd.

Which statement about the mystery waves is always true?

• They will have a smaller amplitude than UV rays.

• They will have a larger amplitude than UV rays.

• They will have a shorter wavelength than UV rays.

• They will have a larger wavelength than UV rays.

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NGSS.MS-PS4-1

Which of the following statements accurately compares the AM and FM waves?

• Only the frequency of the wave changes in an FM signal. In AM radio waves, only the amplitude of the signal changes.

• The amplitude of FM waves changes with the signal, while the frequency of the AM waves changes with the signal.

• The energy in FM waves is higher than the energy in AM waves.

• The frequency and amplitude are the same in FM waves and different in AM waves.

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Most news stations use AM radio because it can be transmitted over much longer

distances than FM radio. Based on this information, how do the wavelengths compare

in AM and FM radio waves?

Which statement about AM waves is correct?

• AM waves have shorter wavelengths than FM waves so they can travel between particles in the air.

• AM waves have longer wavelengths than FM waves so they can travel farther without interacting with obstacles.

• AM waves have wavelengths that do not change so they have more energy than FM waves.

• AM waves have wavelengths that change more dramatically than FM waves, so they are able to travel through a variety of materials more easily.

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Some types of high-energy electromagnetic radiation are harmful because they can change or break down the matter in their path, including changing atoms or breaking down molecules. This kind of radiation can damage the human body.

Which types of radiation may be considered damaging? Select all that apply.

• Gamma rays

• X-rays

• Ultraviolet radiation

• Visible light

• Radio waves

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