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- 1. Multiple Choice
Two sound sources S1 and S2 produce waves with frequencies 500 Hz and 250 Hz. When we compare the speed of wave 1 to the speed of wave 2 the result is:
Twice as great
One-half as great
The same
It cannot be determined with the given information.
- 2. Multiple Choice
A sound wave resonates in a tube with two open ends. What are the wavelengths of the three lowest resonating frequencies generated in the tube?
L, 2L, 3L
2L, L, 2L/3
L/2, L/3, L/5
4L, 4L/3, 4L/5
- 3. Multiple Choice
A sound wave resonates in an open pipe with a length of 2 m. What is the wavelength of the wave?
0.5 m
1.0 m
1.5 m
2.0 m
- 4. Multiple Choice
A sound wave resonates in an open pipe with a length of 4 m. What is the resonating frequency? (Vsound = 340 m/s)
85 Hz
170 Hz
340 Hz
510 Hz
- 5. Multiple Choice
A sound wave resonates in an open pipe with a length of 3 m. What is the wavelength of the wave?
1.5 m
2.0 m
3.0 m
6.0 m
- 6. Multiple Choice
A sound wave resonates in an open pipe with a length of 1.5 m. What is the resonating frequency? (Vsound = 340 m/s)
85 Hz
170 Hz
340 Hz
510 Hz
- 7. Multiple Choice
A sound wave resonates in a tube with one open end. What are the wavelengths of the three lowest resonating frequencies generated in the tube?
L, 2L, 3L
L, 2L, 2L/3
L/2, L/3, L/5
4L, 4L/3, 4L/5
- 8. Multiple Choice
Two sound sources generate pure tones of 70 Hz and 80 Hz. What is the beat frequency?
5 Hz
10 Hz
15 Hz
20 Hz
- 9. Multiple Choice
A sound wave resonates in a closed pipe with a length of 1.5 m. What is the wavelength of the wave?
0.5 m
2.0 m
2.5 m
3.0 m
- 10. Multiple Choice
A sound wave resonates in a closed pipe with a length of 3.5 m. What is the wavelength of the wave?
1.5 m
2.0 m
3.0 m
6.0 m
- 11. Multiple Choice
A sound wave resonates in a closed pipe with a length of 2.5 m. What is the resonating frequency? (Vsound = 340 m/s)
85 Hz
170 Hz
340 Hz
680 Hz
- 12. Multiple Choice
Two sound sources generate pure tones of 115 Hz and 130 Hz. What is the beat frequency?
5 Hz
10 Hz
15 Hz
20 Hz
- 13. Multiple Choice
Two sound sources produce waves with slightly different frequencies. What happens with the beat frequency if the frequency of the lowest tone increases and keeps increasing?
increases
decreases
increases then decreases
decreases then increases
- 14. Multiple ChoiceWhat can you tell about this object's motion?Moving to the North (up).Moving to the South (down).Moving to the West (left).Moving to the East (right).
- 15. Multiple ChoiceWhat best describes the doppler effect?An apparent change in frequency of a wave due to the relative motion between a wave source and an observerWhen sound changes pitchWhen light changes colorAn apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
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