Mind map
revision physics
Mind map: electromagnetic spectrum
Map content
revision physics
electromagnetic wave
- is a wave that transfers energy-it can travel through a vacuum and travels at the speed of light
electromagnetic spectrum
- is electromagnetic waves ordered according to wavelength and frequency - ranging from radio waves to gamma waves
visible spectrum
- is the group of electromagnetic waves that we can see
infrared
- is the part of the electromagnetic spectrum that slightly shorter wavelength than the visible spectrum
radio waves
- have a long wavelength and are used for communication
RICH MONKEYS IN VEGAS USE X'S GROSLY
- RADIO, MICROWAVES, INFRARED, VISIBLE LIGHT, ULTRAVIOLET, X-RAYS, GAMMA-RAYS
ALL WAVES TRAVEL AT THE SAME SPEED IN SPACE
Radio Waves - broadcasting aqnd communications
microwaves- cooking and satellite transmissions
infrared - heating and night vision equipment
visible light- optical fibres and photography
ultraviolet-flurorescent lamps
x-rays- observing internal structures of objects and medical uses
gamma- sterilising food and medical equipment
danagers-
- microwaves- internal heating of body tissue
- infrared - skin burns
- ultraviolet- damage to surface cells and vlindness
- gamma- cancer, cell mutation