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Waves
Ray diagrams need drawing accurately with a ruler. Marks are routinely lost for freehand sketches.
01
Transverse and longitudinal waves
The difference and examples
Coming soon
02
Wave properties and the wave equation
Frequency, wavelength and speed
Coming soon
03
Reflection and refraction
Ray diagrams and the normal
Coming soon
04
The electromagnetic spectrum
Order, properties and uses
Coming soon
05
06
Dangers of electromagnetic radiation
Ionising radiation and risk
Coming soonSound and seismic waves
Hearing range, ultrasound, sonar and seismic waves
Read nowHigher only
07
Lenses and images
Converging and diverging lenses, ray diagrams
Coming soonHigher only
08
Black body radiation
Absorption, emission and the Earths temperature
Coming soonHigher onlyAll of this is free
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