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Radio Waves:
What is it?
Uses:
Dangers:
Various types of transmitter that can be given off by stars, sparks, and lightning.
Radio waves are used for communications, police radio communications, television transmissions, and military aircraft radios.
Radio waves can cause cancer, leukemia, and other disorders.
Microwaves:
They are high frequency radio waves.
Mobile phones, microwaves, radar, traffic speed cameras.
Can cause cataracts in the eyes, microwaves in mobile phones can cause brain damage,
Infra Red:
Infra Red can be given off by hot object.s. Infra Red is also given off by stars, lemps, and flames.
Used in remote controls, video recorders, heal sports injuries, communications, alarm systems.
Overheating.
Visible Light
Light wave are give off by anything that’s hot enough to glow
Too much light can damage the retina in your eyes.
We use light to see things Lasers are used in compact disc and dvd players Light wave scan also be made by using a laser Lasers are used in laser printers Aircraft weapon aiming systems
Ultraviolet:
Ultra-Violet light is made by special lamps, for example, on sun beds. It is given off by the Sun in large quantities.
Sun tan Detecting forged bank notes UV lamps can also be used in clubs making your clothes glow Hospitals use UV light to sterilize surgical equipment Food and drug companies also use UV light to sterilize their products
Damage the retina in your eyes Large doses can give you a sunburn and even skin cancer
