Define the terms wavelength, frequency, time period and amplitude of a sound wave. how  are the wavelength a nd frequency of a sound wave is related to its speed?

Wavelength :- The distance between two consecutive compression or two consecutive rarefaction is known as wavelength.
Frequency :- No of oscillations per second .
Time Period :- The time taken by 2 consecutive compressions or rarefactions to cross a fixed point is called time period
Amplitude :- It is the max disturbance in the medium on either side of the mean position .

Velocity = wavelength X  Frequency
v = v  X lambda