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8 Cards in this Set
- Front
- Back
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Radio waves |
Longest wavelength, shortest frequency Used to carry information around the world Used for: Radio signals Television signals Cell phones Maritime communication |
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Microwaves |
When food is heated by this, the water particles vibrate Since these can travel through clouds and can be used both day and night, they are use to map earth and other object from space Used in radar |
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Infrared waves |
We experience this as heat Shows heat loss in building Eg: Burglar alarms Motion sensors Vision goggles Used in fast food restaurants to keep food warm |
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Ultraviolet Rays |
Main sources are sun and other stars Small amount can be beneficial to human health Large amt. of exposure can cause: Sunburn/create a tan Increase the risk of skin cancer |
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Visible light |
Allow us to see Creates a rainbow |
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X-Rays |
Thiś very high energy radiation can penetrate human tissues, but has a difficulty passing through bone , making it useful for medical imaging Used in airports to scan luggage Check for fractures or damage |
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X-Rays |
This very high energy radiation can penetrate human tissues, but has a difficulty passing through bone , making it useful for medical imaging Used in airports to scan luggage Check for fractures or damage |
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Gamma rays |
Extremely high radiation that can penetrate human tissues
Used to sterilize medical equipment and to kill cancer cells |
