By Amanda Schneider
What Disturbance Causes an Electromagnetic Wave?
Difference Between Mechanical and Electromagnetic Waves
Electromagnetic waves, unlike mechanical waves are capable of traveling through a vacuum, while mechanical waves require a medium to travel through. Also, electromagnetic waves contain two parts: the electric part and the magnetic part. Mechanical waves only contain one part.
Types of ED Radiation
These radiations are listed in order of highest to lowest frequency. Therefore, they are also in order of lowest to highest energy level.
Gamma Rays: These waves have the shortest wavelengths less than .01 nm. They also have the highest frequency, and most energetic region of the EM spectrum.
X-Rays: These waves range in wavelength anywhere from .01-10 nm. They have
Ultraviolet Rays: These waves have wavelengths ranging from 10-310 nm.
Visible Light: These waves cover the range of 400-700 nm for wavelength.
Infrared Light: These waves have wavelengths from 710 nm-1 ml
Microwaves: These waves have wavelengths from 1 m to 1 ml.
Radio Waves: These have wavelengths longer than 1 mm. These waves also have the lowest energy rates and have the lowest frequency.
Here is a video on the electromagnetic spectrum!
Pictures and uses of different types of radiation!
Every day visible light is used in fireflies and light bulbs.
UV light is very important to everday life, UV light is emitted from the sun and is also emitted from "hot" objects in space.
X-rays are used in airport security scans and in x-ray machines used by doctors.
Radio waves are used in daily life in AM radios and in Amateur radios.
Microwaves are used in everyday life in microwave ovens and in airplane communication.
Infrared light is used in night vision goggles and in TV remote controls every day.