1. Waves & Sound Review
Level Physics

3. Bellringer Questions
You have 3 minutes to answer the following questions.
If 300 Hz is the fundamental frequency, then what is the third harmonic frequency?
A. 100 Hz b. 150 Hz c. 600 Hz d. 900 Hz
How many wavelengths are in the diagram below?
A. 1 B C D. 4
The unit for measuring the loudness of sound is called
A. Amplitude B. Decibel C. Volume D. Hertz
4. In a longitudinal wave, particles move ____ relative to the motion of the wave.
A. Parallel B. Perpendicular C. Neither

5. 1. Which of the following frequencies has the shortest wavelength?
120 Hz
400 Hz
3000 Hz
120, 000 Hz

6. 2. Which length represents the amplitude?

7. 3. Which wave has the longest period?B

8. 4. How many nodes are in the standing wave?2 4 5 6 8

9. 5. How long is one wavelength?
2 m
2.5m 4m
10m
10 m

10. 6. What type of wave is illustrated below?
Longitudinal
Transverse
Elliptical
Torsional

11. 7. Which has the lowest frequency?

12. 8. What type of wave is illustrated in the tube?
Longitudinal
Transverse
Elliptical
Torsional

13. 9. One tuning fork’s vibration causes another tuning fork to vibrate
9. One tuning fork’s vibration causes another tuning fork to vibrate. This is an example of
Interference
Harmonic Motion
Resonance
Beats

14. 10. What is the beat frequency between 458 Hz ad 462 Hz?

15. 11. The diagram below represents
Constructive Interference
Destructive Interference
Beats
Reflection

16. 12. Each wave has an amplitude of 10 cm
12. Each wave has an amplitude of 10 cm. When the two waves meet, the amplitude will be
Zero
10 cm
20 cm
D. 100 cm

17. 14. What is the wavelength of a wave, given its speed is 340 m/s and its frequency is 512 Hz?

18. 15. What is the period of this wave?
Waves & Sound Notes
15. What is the period of this wave?
1 sec
2 sec
4 sec
3 sec

19. 16. When a wave enters a new medium, the
Waves & Sound Notes
16. When a wave enters a new medium, the
Frequency remains the same and the speed remains the same
Frequency changes and the speed changes
Frequency remains the same and the speed changes
Frequency changes and the wavelength changes

20. Waves & Sound Notes
17. A wave completes 5 cycles in 10 seconds. With a wavelength of 2 m what is its speed?
0.5 m/s
1 m/s
2 m/s
4 m/s

21. 18. How does temperature affect the speed of sound?
It does not affect it.
Higher temperatures result in higher speeds.
Lower temperatures result in higher speeds.

22. 19. A pulse strikes a fixed end
19. A pulse strikes a fixed end. Which of the following diagrams represents the reflection of the pulse? C B A

23. 20. Which harmonic is represented in the diagram below?
First
Second
Third
Fourth

24. 21. What is the fundamental frequency of this harmonic if its current frequency is 800 Hz?