Kim and Sam are playing with a ball in the park. Unfortunately the ball finishes up in the middle of a pond, out of reach.

Kim thinks that hitting the water with a stick will make waves that will push the ball to the other side.

a. Which two of these words best describe the waves that are created on the water surface? Circular longitudinal plane pressure transverse

b. Kim hits the water surface regularly so that waves travel out to the ball and beyond it.

i. What happens to the ball? Sam throws a stick which hits the ball at P.

ii. Sam is successful at moving the ball across the pond. Kim is not. Explain why.

c. i. Kim hits the water surface regularly with the stick 20 times in 10 seconds. Calculate the frequency of the waves.

ii. The waves travel across the pond at 0.5 m/s. Calculate the wavelength.