What is the EM spectrum?
The electromagnetic waves vary in wavelengths and frequency the Continuous electromagnetic spectrum is:
-radio waves
-microwaves
-infrared
-visible light
-ultraviolet radiation
-X-rays and gamma radiation
What properties do electromagnetic waves share?
All electromagnetic waves travel at the speed of light
EM waves can travel through a vacuum they do not require a medium to travel through
They are all transverse waves
What is the equation for wave speed?
Wave speed = frequency x wavelength
What are the dangers of ultraviolet rays?
UV waves are harmful to human eyes and can cause blindness
UV waves are harmful to your skin. Too much UV from the sun or sun bed can cause long term damage
UV waves can also age the skin prematurely as well as sunburn and skin cancer
How can you protect against UV rays?
By staying indoors in summer, using skin creams to block UV waves from reaching your skin
If you use a sun bed don’t go over the recommended time also wear special goggles to protect your eyes
