RADIO/MICROWAVES
Shortest wavelength and highest frequency on electromagnetic spectrum
What are Gamma Rays?
The higher the frequency the higher the __________ of the wave
energy
This kind of wave is used to transmit signals around the Earth
Radio Waves
True or False, X-Rays can penetrate lead.
What is False.
Electromagnetic waves are ___________ waves
transverse
How does the wavelength of radio waves compare to visible light?
Radio wavelengths are much longer
Uses of infrared rays
What are toasters, grills, thermal imaging, remote controls, etc?
This protects us from too much UV light.
What is the ozone layer in our atmosphere or sunscreen?
Why do x-ray techs protect themselves from exposure to x-rays?
What is X-rays are high frequency, high energy waves that can damage cells and tissues.
Ultraviolet rays can cause materials to __________, or glow
fluoresce
This wave travels at the speed of light through space (or a vacuum)
All the electromagnetic waves
True or False: Most Infrared Rays get absorbed by the Earth's Atmosphere.
What is TRUE.
Why must X-ray and gamma-ray telescopes be placed in space?
What is these wavelengths can’t penetrate the atmosphere, so ground-based telescopes can’t detect them
These rays pass through the body easily
x-rays
This wave transfers energy from one place to another
All electromagnetic waves
What is a thermal image, or thermagram?
A picture that shows regions of different temperatures in the body or other object.
UV Waves have shorter __________ than visible light.
wavelengths
X-rays are used in the field of medicine. How are they used?
X-Rays determine fractures and breaks in bones and teeth.
These rays are especially dangerous to living organisms because they have the highest frequency and energy of all the waves on the electromagnetic spectrum.
gamma rays