Waves & Sound Review Level Physics.

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Presentation transcript:

Waves & Sound Review Level Physics

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 c. 900 Hz How many wavelengths are in the diagram below? A. 1 B. 2.5 C. 3.5 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

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

2. Which length represents the amplitude?

3. Which wave has the longest period? B

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

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

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

7. Which has the highest frequency?

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

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

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

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

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

13. The driver of a car sounds the horn while traveling toward a stationary person. Compared to the sound of the horn heard by the driver, the sound heard by the stationary person has Higher pitch, shorter wavelength Higher pitch, longer wavelength Lower Pitch, shorter wavelength Lower Pitch, longer wavelength

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

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

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

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