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23 Cards in this Set
- Front
- Back
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Total destructive interference |
When 2 pulses meet resulting in no pulse |
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f=1/T |
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v=Δx/Δt |
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Compression |
Region of a longitudinal wave where particles are close together |
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Parts of a transverse wave |
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Longitudinal waves |
Cannot travel through a vacuum eg sound waves. Particles of the medium move parallel 6o the direction of the wave
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Transverse waves |
Can travel through a vacuum (light, gamma rays, x rays) Particles of the medium move perpendicular to the direction of the wave. (90°) |
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Pitch / frequency |
The shorter the wavelength the higher the pitch |
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Crest + trough |
Crest = point in wave where displacement of the medium is at its maximum Troughs = if the displacement is at its minimum |
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Pulse |
A single disturbance that moves through a medium. Many pulses form a wave. |
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f=v/λ |
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Frequency (longitudinal) |
The no. of compressions or rarefactions that pass a point per second |
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Period (T) |
Time taken for 1 wave to pass a point. Measured in s |
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Volume / loudness |
The higher the amplitude the louder the sound |
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Rarefaction |
Region of longitudinal wave where particles are furthest apart |
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Amplitude |
The max distance the medium is displaced from its rest position (m) |
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Oscilloscope |
A device that turns longitudinal waves into transverse waves |
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Destructive interference |
When 2 pulses meet resulting in a smaller pulse |
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Constructive interference |
When 2 pulses meet and form a bigger pulse |
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Wavelength (transverse) |
Distance between 2 consecutive points in phase |
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Superposition (interference) |
When 2 disturbances occupy the same space at the same time the resulting disturbance is the sum of the 2 disturbances |
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Wavelength (longitudinal) |
Distance from the centre of 2 consecutive compressions/ rarefactions |
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Frequency (transverse) |
Number of waves that passes a point in 1 second. Measured in Hz |
