Two friends are doing a sound experiment: Harry drops a ringing tuning fork off the edge of a cliff. Ron stands at the base and records the frequency of the sound. Ron makes a graph of the frequency he observes as a function of time. Which of the following graphs best represents the frequency which Ron measures? Explain why. Graph 1 Graph 2 Time Time Graph 3 Graph 4 Time Time Frequency Frequency

Two friends are doing a sound experiment: Harry drops a ringing tuning fork off the edge of a cliff. Ron stands at the base and records the frequency of the sound. Ron makes a graph of the frequency he observes as a function of time. Which of the following graphs best represents the frequency which Ron measures? Explain why. Graph 1 Graph 2 Time Time Graph 3 Graph 4 Time Time Frequency Frequency