1. A picth of Middle D (first harmonic = 294 Hz) is sounded out by a vibrating guitar string. The length of the string is 70.0 cm. Calculate the speed of the standing wave in the guitar string.

Responses

• 618 m/s
• 206 m/s
• 412 m/s
• 824 m/s

2. A frequency of the first harmonic is 587 Hz (pitch of D5) is sounded out by a vibrating guitar string. The speed of the wave is 600 m/s. Find the length of the string.

Responses

• 1.02 m
• 0.765 m
• 0.51 m
• 0.255 m

3. A student is playing an open-end pipe. The frequency of the second harmonic is 880 Hz (a pitch of A5). The speed of sound through the pipe is 350 m/s. Find the length of the pipe.

Responses

• 0.597 m
• 0.796 m
• 0.398 m
• 0.199 m

4. A flute is played with a first harmonic of 196 Hz (a pitch of G3). The length of the air column is 89.2 cm. Find the speed of the wave resonating in the flute.

Responses

• 174.83 m/s
• 699.32 m/s
• 524.49 m/s
• 349.66 m/s

5. A closed-end test tube has a length of 17.2 cm. The speed of sound in the test tube is 340 m/s. Find the frequency of the first harmonic.

Responses

• 741 Hz
• 247 Hz
• 988 Hz
• 494 Hz

6. A note played from a closed-end pipe organ has a first harmonic of 349.2 Hz. The speed of sound in the pipe is 350 m/s. Find the length of the pipe.

Responses

• 0.5 m
• 0.25 m
• 1 m
• 0.125 m