English National Curriculum - Science
Mission Objectives
Describe the electromagnetic spectrum
Recall the different waves on the EM spectrum
Describe the properties of electromagnetic waves
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Words and meanings to learn
transverse wave
a wave where the vibrations or movements are at right angles to the direction the wave is travelling
wavelength
the distance between two consecutive peaks (or troughs) in a wave, usually measured in metres
absorb
to take in energy, which can cause changes such as heating the material or exciting electrons
electromagnetic spectrum
the entire range of electromagnetic waves, from long-wavelength radio waves to short-wavelength gamma rays
frequency
the number of complete waves or cycles that pass a given point in one second and is measured in hertz
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