Flashcards
AS Physics Waves
Flashcards do conjunto (29)
- 1Progressive wavesWaves that transfer energy from one point to another
- 2Displacement of a waveThe distance of a point on the wave from its undisturbed position
- 3AmplitudeThe maximum displacement of a wave
- 4WavelengthThe distance from any point on a wave to the next exaactly similar point
- 5PeriodThe time taken for one complete oscillation of a point in a wave
- 6FrequencyThe number of oscillations per unit time of a point on a wave
- 7Formula for frequencyf = 1/T
- 8Mechanical wavesWaves that require a medium to travel through
- 9Longitudinal wavesThe particles of the medium vibrate parallel to the direction of the wave velocity
- 10Transverse wavesOscillations that vibrate at right angles to the direction of the wave velocity
- 11Wavelength of a longitudinal wave
- 12Wavelength of a transverse wave
- 13Phase differenceThe amount by which one oscillation leads or lags behind another. Measured in degrees or radians
- 14Wave energyThe material oscillates in a fixed position. It is the energy that is transfered between each particle
- 15Wave intensityPower/Cross sectional area
- 16How intensity decreasesWaves spread out when they travel
Waves may be absorbed or scattered - 17Intensity is proportional toAmplitude squared
Intensity/Amplitude^2 = Constant - 18Wave speedFrequency x wavelength
- 19The Doppler effectThe change in frequency or wavelength of a wave observed when the source of the wave is moving towards or away from the observer
- 20Equation for the doppler effectFs = Frequency of source
- 21Speed of waves in a vacuum3 x 10^8 ms
- 22Order of magnitude (largest wavelength to smallest)Radio waves
Microwaves
Infrared
Visible light
Ultra-violet
X - rays
Gamma rays - 23Radio waves magnitude>10^-1
- 24Microwaves magnitude10^-1 to 10^-3
- 25Infrared magnitude10^-3 to 7 x 10^-7
- 26Visible light magnitude7 x 10^-7 (red) to 4 x 10^-7 (violet)
- 27Ultraviolet magnitude4 x 10^-7 to 10^-8
- 28X -rays magnitude10^-8 to 10^-13
- 29Gamma rays magnitude<10^-10
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- Descrição
- AS level Physics FlashCards sobre AS Physics Waves, criado por Sean Byrne em 19-04-2017.
- Criado por
- Sean Byrne
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