Electeo Magnetic Flashcards
Electromagnetic spectrum order
Radio, micro, infrared, visible light, ultraviolet, X-ray, gama rays
smaller wavelength means …
high frequency
eg. gamma rays
bigger wavelength means
smaller frequency
refraction
the bending of light (also sound, water and other waves) as it passes from one transparent substance into another
frequency
number of waves passing one point each second (hertz)
amplitude
measurement of the amount of energy transferred by a wave
what type are electromagnetic waves
transverse
Danger associated with radio waves
high intensity
can heat biological tissue
increase body temperature
Danger associated with micro waves
burn you
Danger associated with infrared waves
loss of vision
swelling
Danger associated with visible light
damage your eye
Danger associated with ultra violet light waves
sun burn ( damage skin cells)
lead to cancer
Danger associated with xray
cancer
mutation or damage to cells
Danger associated with gamma waves
very harmful
burn
cause cancer
damage dna
what is radio waves used for
broadcasting, satellite transmissions
