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physics key words
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- 1wave speed(v)Frequency(f)x wavelength
- 2Frequency(F)1
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T(periodic time) - 3wave speedthe distance travelled by the wave per unit time
- 4period of oscillationThe time taken for one oscillation time for wave to move one whole wavelength past a given point
- 5displacementdistance from the equilibrium position in a particular direction; a vector, so it can have either a positive or a negative value
- 6amplitudeMaximum displacement from the equilibrium position
- 7frequencythe number of wavelengths passing a given point per unit time
- 8wavelengthMinimum distance between two points in phase on adjacent waves
- 9longitudinal waveoscillation back and forth along the direction of propagation
More parallel to the direction of travel - 10transverse waveoscillation at right angles to the direction of propagation-up and down or side to side
Movement is at right angles to the direction of travel - 11compressionregion with particles closer together
- 12rarefactionsparticles further apart
- 13superpositionWhen two waves meet
have o be coherent= same frequency and same set phase difference - 14path differencedifference in the distance travelled by two waves from their sources to a point
- 15phase differenceThe difference in phase angle between two waves
- 16constructive interferenceresultant wave greater amplitude
- 17destructive interferenceStraight line
Decreases amplitude
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- A level BTEC science Fichas sobre physics key words, creado por Katy Howe el 27/03/2018.
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- Katy Howe
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