IB Physics SL C.5.1 Doppler effect
IB Physics SL C.5.1 Doppler effect
Practise explaining why relative motion changes observed frequency or wavelength and using wavefront spacing to infer direction of motion.
How this is tested
- explain a higher or lower heard frequency by linking relative motion to compressed or stretched wavefront spacing
- interpret changing detected frequency to decide whether the observer or source moves towards or away from the other
- use wavefront patterns to compare wavelength on each side of a moving source while noting wave speed stays constant