Electromagnetic Waves Flashcards
Electromagnetic Spectrum
The complete range of electromagnetic waves placed in order of increasing frequency. Is made up of radio waves, microwaves, infrared rays, and gamma rays.
Electromagnetic Wave
A transverse wave that is made up of vibrating electric and magnetic fields that move through space or some medium at the speed of light
Radio Waves
Electromagnetic waves with the longest wavelengths and lowest frequencies
Microwaves
Electromagnetic waves that have shorter wavelengths and higher frequencies than radio waves
Radar
A system that uses reflected radio waves to detect objects and measure there distance and speed
Infrared Rays
Electromagnetic waves with shorter wavelengths and higher frequencies than microwaves. Carry more energy than microwaves, and are often called heat rays.
Thermogram
An image that shows regions of different temperatures in different colors
Visible Light
Electromagnetic radiation that can be seen with the unaided eye
Ultraviolet Rays
Electromagnetic waves with shorter wavelengths and higher frequencies than those of visible light. Carry more energy than visible light and can damage or kill living cells.
X-rays
Electromagnetic waves with shorter wavelengths and higher frequencies than ultraviolet rays. Carry more energy than ultraviolet rays and can penetrate most matter.
Gamma Rays
Electromagnetic waves with the shortest wavelengths and highest frequencies. Have the greatest amount of energy and are the most penetrating.