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| If an object oscillates back and forth over the same distance and each cycle taking the same amount of time. |
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Fsp=-kx The minus sign means it is a restoring force |
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| Simple Harmonic Motion (2) |
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Restoring force is proportional to the negative of the displacement SHM waves are sinusoidal |
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Waves Amplitute, A Wavelength, λ Frequency, f
Period, T Wave Velocity Crest/Trough |
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| longitudinal waves (2) i.e. |
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Definition
the motion of particles in the wave move parallel to it i.e. sound waves, earthquakes can move through liquid-in the transverse direction |
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The motion of particles in the wave are perpendicular to it (sin) i.e. earthquakes |
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power/area IαAmplitude2 Iα1/r2 |
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| Damped Harmonic Motion (3) |
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Definition
Harmonic motion with frictional force or drag unwanted-clocks, pendulums wanted-shock absorbers, earthquake protection |
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Definition
| angle of incidence equals angle of reflection |
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Definition
When wave enters a medium where wave speed is different, wave fronts and rays will change direction (rays are perpendicular to fronts) [image] |
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Definition
| Waves bend around an obstacle, leaving a shadow region |
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