Lesson 4 of 4 · Form 3 Physics
Waves
15 min
Types of waves
- Transverse: vibrations at right angles to the direction of travel (water waves, light).
- Longitudinal: vibrations along the direction of travel (sound), with compressions and rarefactions.
Terms
- Amplitude: maximum displacement.
- Wavelength λ: distance between two successive crests.
- Frequency f: waves per second (hertz).
- Period T = 1 ÷ f.
The wave equation
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