Electromagnetic Spectrum Flashcards
(17 cards)
Electromagnetic Spectrum
The range of electromagnetic waves ordered by increasing wavelength and frequency
Transverse Waves
waves in which the particles vibrate in an up and down motion
Radio Waves
Electromagnetic waves with the longest wavelengths and lowest frequencies
Microwaves
useful in cooking and heating food, using wireless internet, and radar
Infrared Waves
part of the electromagnetic spectrum that consists of waves with frequencies between those of microwaves and visible light.
Visible Light
All the bands of light which can be seen with the unaided human eye.
Ultraviolet Light
Another type of electromagnetic wave produced by the sun that has shorter wavelengths and higher frequencies than visible light.
X-Rays
waves that are so powerful they can pass easily through the skin and allow doctors to look at our bones
Gamma Rays
the highest frequency waves on the electromagnetic spectrum with the shortest wavelength and the greatest energy
Wavelength
Electromagnetic waves are divided into regions based on
Ultra-Violet, X-rays, and Gamma Rays
What are all the regions on the EM spectrum that are considered dangerous to humans?
True
Electromagnetic Waves can travel through a vacuum and a medium. (True or False)
Increases
As you go from left to right across the electromagnetic spectrum what happens to the frequency and energy of the waves?
Decreases
What happens to the speed of light as it enters a different medium?
Violet
Which color of the visible light portion of the electromagnetic spectrum has the highest frequency and the most energy?
Red
Which color of the visible light portion of the electromagnetic spectrum has the lowest frequency and the least energy?
False
Gamma rays travel faster than visible light. (True or False)
