gradient = \(\frac{change~in~y}{change~in~x}\) = \( \frac{change~in~distance}{change~in~time} \) = \(\frac{change~in~metres}{change~in~seconds} \) = m/s. The gradient ...

A displacement-distance graph is a snapshot of the wave at one particular time. The graph can be used to work out the wavelength, \(\lambda\), of the wave. The wavelength of this wave = 40 cm. You can ...