Science St 1 Flashcards
Typical source / production of radio waves
Oscillating circuits
Sample detectors of radio waves
Receiver aerials
Applications of radio waves
Communication
Used by “am” stations
Used by “fm” stations
Harmfull effect of radio waves
Health disorder
Can cause cancer and leukemia
Typical sources/production of microwave
Oscillating circuits in special vacuum types
Sample detectors of microwave
Point contact diodes
Applications of microwave
Used for cookinh in microwave ovens
Used by mobile phones
Used in radar
Harmfull effect of microwave
Can damage genetic and subsequently cause cancer
Typical sources /production of infrared
Excitation of atoms and molecules
Sample detectors of infrared
Thermopiles, bolometer, infared photo graphic film
Applications of infrared
Heating sources
Cosmetic application
Infared communication
Infared photography
Harmful effects of infared
Raises the internal temperature of the eye
Cataracts
Corneal ulcers
Retinal burns
Typical sources/production of visible light
Excitation of atoms and spark and arc flame
Sample detector of visible light
The eyes
photocells
photographic film
Application of visible light
To aid a person to see
Harmful effects of visible light
If to much, it may cause blindness/eye damage
Can also hurt your retina
Age related muscular degeneration
Typical sources /production of ultraviolet
Excitation of atoms, vacuum spark
Sample detector of ultra violet
Photocells
Photographic film
Application of ultra violet
Used to kill microbes
Sterilize food and drugs
Used in vitamin d deficiency
Harmful effects of ultra violet
Vomiting
Bleeding
Fainting
Hairloss
Loss of skin
Typiccal sources/production of x ary
Sudden high retardation of high energy electrons
Sample detectors of ultra violet
Photocells photographic film
Applivations of x rays
Medical imaging
Treating cancer and exploring the cosmos
Harmfull effect of x ray
IF HIGH DOSES IT Can CAUSES
Headache
Hairloss
Skin burns, etc
