A physics student strikes a tuning fork. This creates a sound wave in the air.
a.[2]
The frequency of the sound wave is 500 Hz500\text{ Hz}500 Hz. The speed of sound in air is 340 m/s340\text{ m/s}340 m/s.
Calculate the wavelength of the sound wave. Use the equation: $\text{wave speed} = \text{frequency} \times \text{wavelength}$
b.[3]
Explain how sound travels through the air from the tuning fork. Write about air particles in your answer.
c.[2]
The figure below is a graph plot representing this sound wave:
Another sound wave has a lower frequency. The amplitude of the wave remains the same.
Describe how the wavelength and amplitude of this second wave compare to the first wave shown on the graph.