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Waves
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- 1Wavea means of transferring energy through a medium without any net movement of that medium
- 2Mechanical Wavepasses vibrations from molecule to molecule. It needs a medium to travel through. Ex. Sound
- 3ElectromagneticCan travel in a vacuum (3X108). Ex. Light
- 4Transverse wavesthe movement of particles are perpendicular to the movement of the wave
- 5Longitudinal wavethe movement of particles are parallel to the movement of the wave
- 6Wavelengththe distance between two corresponding points in an adjacent cycle of a wave movement
- 7Frequencythe number of cycles completed at any one point per second
- 8Periodthe time taken to undergo one complete cycle
- 9Speedthe speed of propagation through a medium
- 10Amplitudethe height of the wave
- 11Reflectionthe bouncing of waves off an object
- 12Refractionthe bending of waves as they pass from one medium to another
- 13Diffractionspreading of waves around an obstacle or slit
- 14Interferencewaves from two sources meet to produce a wave of different amplitude
- 15PolarisationTo polarise a wave means to make it vibrate
- 16Destructive interferencewhen waves from two coherent sources meet to produce a wave of smaller amplitude
- 17Constructive wavesoccurs when waves from two coherent sources meet to produce a wave of greater amplitude
- 18Coherent wavesWaves of the same frequency and wavelength and that maintain a constant phase difference
- 19Stationary waveswhen two waves of the same frequency and wavelength, travelling in opposite directions, meet.
- 20The Doppler Effectthe apparent change of frequency of a wave due to the relative motion of the source of the wave or the observer
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- Fichas sobre Waves, creado por katrina07 el 24/09/2015.
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- katrina07
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