Electromagnetic Spectrum

Used for medical imaging to diagnose health issues in bones and teeth

• visible light

• ultraviolet rays

• x-rays

• gamma rays

Electromagnetic waves that you can see

• radio waves

• visible light

• x-rays

• ultraviolet rays

How are different types of light (radiation) arranged along the electromagnetic spectrum?

• By how fast they travel

• By their sources

• By the amount of energy they carry

• By how radioactive they are

Tags

NGSS.HS-PS4-1

Place the following types of EM radiation in order, from lowest energy to highest energy: A) Visible light; B) Gamma rays; C) Radio waves

• A, C, B

• C, A, B

• B, C, A

• C, B, A

Tags

NGSS.HS-PS4-1

Which has more energy?

• radio/tv waves

• infrared

Infrared radiation can be used to take special pictures called thermographs. “Graph” means “image”. What can you infer about the prefix “thermo”?

• It means “light”

• It means “energy”

• It means “heat”

• It means “radio”

Tags

NGSS.HS-PS3-4

NGSS.HS-PS4-3

What might happen if the ozone layer did NOT block the sun’s ultraviolet rays?

• Humans would be able to see in the ultraviolet range of the EM spectrum

• Devices that use electromagnetic radiation would no longer work

• The surface of the earth would be much hotter

• Rates of skin cancer would skyrocket

Tags

NGSS.HS-PS4-3

Match the following

• Overexposure to this can result in sunburns and skin cancer

• UV rays

• Has the longest wavelengths and the lowest frequency

• Infrared rays

• Used in cell phone communication and police radar systems

• Microwaves

• Has the highest energy of all electromagnetic radiation and is the most damaging to human tissue

• Radio waves

• It is used in thermal imaging

• Gamma Rays

What word best describes gamma rays?

• Weak

• Destructive

• Visible

• Harmless

Tags

NGSS.HS-PS1-8

NGSS.HS-PS4-3

What do all forms of electromagnetic radiation have in common?

• Their strength

• Their speed

• Their wavelength

• Their frequency

Tags

NGSS.HS-PS4-1