A sound wave has a frequency of 500 Hz. The sound wave has a wavelength of 0.34 m in air. Calculate the speed of the sound wave in air?

As we know so far, c = f / λ. This equation comes from a much simpler version of speed = distance/ time. As the λ  (with units "m") can be seen as distance and the frequency (with units "1/s") can be seen as time. So by substituting the wave measurements into the speed = distance/ time formula, you can understand the c = f / λ equation a lot better. 

Now lets make f= 500 Hz and λ = 0.34

So c= 500/ 0.34

Therefore c = 170 (m/s)

RA

Related Physics GCSE answers

All answers ▸

What are the changes in energy that an object experiences when it is launched vertically at a given velocity into the air and falls back to the ground? This question ignores air resistance.


When going around a roundabout, why do I feel a force pulling me outwards?


Explanation of alpha scattering experiment


Write down the equation which links speed, distance and time