★ KS3-PHYS-WAV-0023Front
Light travels far faster than sound
HintBoth set off together from one place, so compare how quickly each makes the trip.
The whyThe flash and the bang are made at the same instant. The flash reaches you almost immediately, while the thunder crosses the air at about 340 metres every second, so it lags further behind the further away the storm is.
★ KS3-PHYS-WAV-0023Back