Electromagnetic Spectrum

Match the following

• infrared radiation

• 
  Has the longest wavelengths and the lowest frequency

• ultraviolet radiation

• 
  Overexposure to this can result in sunburns and skin cancer

• gamma rays

• 
  Used in cell phone communication and police radar systems

• radio waves

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

• microwaves

• It is used in thermal imaging

Both X-rays and gamma rays have higher frequencies than ultraviolet rays.

• True

• False

Communicating with satellites is an application of gamma rays.

• True

• False

Reorder the following visible light waves from the longest to the shortest (think Roy G Biv).

• red

• orange

• green

• blue

• violet

Reorder the following from shortest wavelength to the longest wavelength.

• gamma rays

• x-rays

• ultraviolet waves

• visible light

• infrared radiation

Which has most energy?

• radio waves

• infrared

• gamma

Which has a highest frequency?

• microwaves

• visible light

• x-rays

Which sources EMITS infrared radiation?

• humans

• microwaves

• radioactive elements

Which of these waves have a wavelength about the size of a molecule?

• radio waves

• visible light

• ultraviolet rays

Which one of these is NOT harmful to humas by penetrating the tissues?

• X-rays

• Gamma Rays

• Infrared Radiation