Waves 0.0 / 5 ? PhysicsWavesGCSEAQA Created by: sms100Created on: 17-04-16 19:47 Q: How do you calculate wave speed? A: Wave speed (m/s) = frequency (hz) x wavelength 1 of 8 Q: What is red-shift? A: Light that moves towards the red end of the spectrum 2 of 8 Q: What is the law of reflection? A: Angle of incidence = angle of reflection 3 of 8 Q: What does the term frequency mean? A: Number of waves per second 4 of 8 Q: What is the Doppler effect? A: Change in wavelength and frequency when the source of waves/observer moves 5 of 8 Q: What does red- shift tell scientists about galaxies? A: That it is expanding 6 of 8 Q: What is the universe? A: An innumerable collection of galaxies 7 of 8 Q: Describe how the sound changes when a car drives past you? A: A car drives towards you wavelength shortens and frequency increases. Car drives away from you wavelength increases and frequency decreases. 8 of 8
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