1. Chapter 11 and 12 Clicker Review

2. True or False: On a fixed boundary, a wave is inverted after it is reflected.

4. Multiple waves that travel in a repeating pattern are known as: a.pulse waves b.horizontal waves c.periodic waves d.particle waves

5. Multiple waves that travel in a repeating pattern are known as: a.pulse waves b.horizontal waves c.periodic waves d.particle waves

6. A tuning fork produces a sound with a frequency of 137 Hz and a wavelength in air of 1.88 m. What value does this give for the speed of sound in air?

7. – 257.56 m/s

8. Waves are the transfer of: a.particles b.matter c.water d.energy

9. Waves are the transfer of: a.particles b.matter c.water d.energy

10. The power output of a rock band is 140 W. What is the intensity of these sound waves to a listener who is sitting 25.0 m from the band?

11. – 0.018 W/m 2

12. Electromagnetic waves travel through: a.air b.water c.empty space d.jello

13. Electromagnetic waves travel through: a.air b.water c.empty space d.jello

14. True or False: Waves that require a medium are called electromagnetic waves.

16. As the amount of energy in a wave increases, the amplitude: a.increases b.decreases c.remains unaffected d.returns to rest

17. As the amount of energy in a wave increases, the amplitude: a.increases b.decreases c.remains unaffected d.returns to rest

18. A guitar string emits a frequency of 300 Hz. Find the wavelength in air attained by this instrument when the speed of sound in air is 375 m/s.

19. – 1.25 m

20. When two waves interact through destructive interference, the waves: a.begin on opposite sides of the rest position and result in a larger combined wave b.begin on opposite sides of the rest position and result in a smaller combined wave c.begin on the same side of the rest position and result in a larger combined wave d.begin on the same side of the rest position and result in a smaller combined wave

21. When two waves interact through destructive interference, the waves: a.begin on opposite sides of the rest position and result in a larger combined wave b.begin on opposite sides of the rest position and result in a smaller combined wave c.begin on the same side of the rest position and result in a larger combined wave d.begin on the same side of the rest position and result in a smaller combined wave

22. A wave pattern that appears to be stationary is known as a: a.constructive wave b.destructive wave c.reflective wave d.standing wave

23. A wave pattern that appears to be stationary is known as a: a.constructive wave b.destructive wave c.reflective wave d.standing wave

24. The number of waves that travel past a specific point in a given amount of time is called the: a.frequency b.amplitude c.wavelength d.speed

25. The number of waves that travel past a specific point in a given amount of time is called the: a.frequency b.amplitude c.wavelength d.speed

26. True or False: When two waves come together, they bounce off one another.

28. The power output of a clarinet is 0.44 W. At what distance is the sound intensity of the clarinet 1.6 x 10 -3 W/m 2 ?

29. – 4.7m

30. The Doppler effect is produced if a.the source is in motion. b.the detector is in motion. c.both of the above. d.none of the above.

31. The Doppler effect is produced if a.the source is in motion. b.the detector is in motion. c.both of the above. d.none of the above.

32. As a sound source approaches and then moves past a stationary observer, the observer will hear a.a rise in pitch then a drop in pitch b.a drop in pitch, then a rise in pitch c.a continuous rise in pitch d.a continuous drop in pitch

33. As a sound source approaches and then moves past a stationary observer, the observer will hear a.a rise in pitch then a drop in pitch b.a drop in pitch, then a rise in pitch c.a continuous rise in pitch d.a continuous drop in pitch