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Description
Mind Map by Brigitte Bunge, updated more than 1 year ago
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Created by Brigitte Bunge
over 3 years ago
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3.3 Electromagnetic spectrum
- describe the main features of
the electromagnetic spectrum
in order of wavelength
- state that the speed of electromagnetic waves in a
vacuum is 3.0 x 10 to the power of 8 m/s and is
approximately the same in air
- state that all electromagnetic waves travel at the same high speed in a vacuum
- describe typical properties and uses of
radiations in all the different regions of the
electromagnetic spectrum including:
- radio and television communications
- radio waves
- radio waves
- satellite television and telephones
- microwaves
- microwaves
- electrical appliances,
remote controllers for
television and intruder
alarms
- infrared
- infrared
- medicine and security
- X- rays
- X- rays
- radio and television communications
- demonstrate an awareness
of safety issues regarding the
use of microwaves and X-rays
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