Sure, here's a sample AP Physics 2 exam question on the topic of sound waves:

Question:

A sound wave travels through air with a wavelength of 0.02 meters and a frequency of 500 Hz. Calculate the speed of the sound wave.

Answer:

The speed of a sound wave can be calculated using the equation:

Where:

• $v$ = speed of sound wave
• $f$ = frequency of sound wave
• $\lambda$ = wavelength of sound wave

Plugging in the given values:

Therefore, the speed of the sound wave is 10 m/s.

Explanation:

In this question, the speed of the sound wave was calculated using the equation $v = f \lambda$, which relates the speed, frequency, and wavelength of a sound wave. The frequency of the sound wave was given as 500 Hz, and the wavelength was given as 0.02 meters. By multiplying the frequency and wavelength, the speed of the sound wave was found to be 10 m/s. This calculation demonstrates how the speed of a sound wave can be determined using its frequency and wavelength.