Write two differences between a longitudinal and a transverse wave.

Draw the displacement-time graph for a wave created when a stone is thrown into a pond.

Define the amplitude of a wave. Show it graphically. What does the amplitude of a wave describe?

Show the wavelength of a wave with the help of a diagram.

What is the audible range? Name an animal which plays games by producing ultrasound.

How is a longitudinal wave represented graphically?

The displacement-distance graph of a wave pulse at $t=0$ is shown here. If the wave travels towards the right at a speed of $40 \mathrm{cm}/\mathrm{s}$, then show the displacement-distance graph of the wave pulse after $1 \mathrm{second}$.

What are the characteristics of a wave motion?

How do sound waves differ from radio waves?