English National Curriculum - Science
Mission Objectives
Identify and describe different types of waves in the EM spectrum used in communication
Describe the uses of radio waves, microwaves and visible light
Explain how we communicate using radio waves, microwaves and visible light
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Words and meanings to learn
microwaves
used in mobile networks, WIFI and satellite communications; they can penetrate the Earth’s atmosphere and enable long-distance communication
optical fibres
thin strands that carry information using light or infrared radiation through total internal reflection (TIR)
visible light
part of the EM spectrum that we can detect with our eyes, essential in technologies such as cameras and fibre optics
radio waves
carry information over long distances, with longer wavelengths being useful for national broadcasts and shorter wavelengths for local broadcasts
wavelength
the distance between two identical points on a wave, which helps determine the frequency
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