Calculate frequency from wave speed and wavelength.

This calculation uses f = v/?, so students divide wave speed by wavelength after converting wavelength to metres if needed. For example, a wave speed of 12 m/s and wavelength of 3 m gives 4 Hz. The answer must include hertz because frequency counts waves per second. This objective is separate from f = 1/T because it uses spatial information about wavelength as well as speed, not timing for one complete oscillation. Within the subtopic Properties of waves in Waves in air, fluids and solids, the explanation is anchored to wavelength, frequency, wave speed and uses those terms in the approved AQA GCSE Physics Waves context.