1. Waves and Sound Clickers

2. A standing wave occurs when A.the amplitude of a wave exceeds its wavelength B.the speed of the wave is zero or near zero C.any two waves overlap D.a wave reflects upon itself [Default] [MC Any] [MC All]

3. If the waves are going by at the same frequency, the wave that has the greatest speed will have the greatest A.wavelength B.amplitude C.frequency D.none of the above [Default] [MC Any] [MC All]

4. A wave oscillates up and down two complete cycles each second. If the wave travels an average distance of 6 meters in one second, its wavelength is A.1 m B.0.5 m C.2 m D.3 m E.6 m [Default] [MC Any] [MC All]

5. The vibrations of a transverse wave move in a direction A.at right angles to the direction of wave travel B.along the direction of wave travel C.that changes with speed [Default] [MC Any] [MC All]

6. An object that completes 20 vibrations in 10 seconds has a frequency of A.2 hertz B.200 hertz C.1 hertz D.0.5 hertz [Default] [MC Any] [MC All]

7. The vibrations of a longitudinal wave move in a direction A.along the direction of wave travel B.that changes with speed C.at right angles to the direction of wave travel [Default] [MC Any] [MC All]

8. An object that completes 10 vibrations in 5 seconds has a period of A.0.5 second B.1 seconds C.2 second D.None of the above [Default] [MC Any] [MC All]

9. How are frequency and period related in simple harmonic motion? A.They are directly related B.They are inversely related C.They both measure the time per cycle D.They both measure the number of cycles per unit of time [Default] [MC Any] [MC All]

10. In the waveform of the longitudinal wave shown, the compressed regions correspond to A.the wavelength B.crests C.troughs D.the mass [Default] [MC Any] [MC All]

11. At a fixed boundary, waves are A.neither reflected nor inverted B.reflected but not inverted C.reflected and inverted D.inverted but not reflected [Default] [MC Any] [MC All]

12. What factor determines the speed at which a wave travels through a medium? A.the amplitude B.the frequency C.the medium D.the wavelength [Default] [MC Any] [MC All]

13. What wave characteristic does not change when a wave passes into a new medium? A.the amplitude B.the frequency C.the medium D.the wavelength [Default] [MC Any] [MC All]

14. As a wave moves from a heavy medium into a lighter medium, the transmitted wave will have A.increased velocity, increased wavelength, same frequency, and decreased amplitude B.decreased velocity, decreased wavelength, same frequency, and decreased amplitude C.decreased velocity, decreased wavelength, same frequency, and increased amplitude D.increased velocity, increased wavelength, increased frequency, and decreased amplitude [Default] [MC Any] [MC All]

15. Barry strikes two tuning forks and hears a beat frequency of 5 Hz. If one of the tuning forks has a frequency of 480 Hz, what is the highest possible frequency of the other tuning fork? A.475 Hz B.485 Hz C.475Hz or 485 Hz [Default] [MC Any] [MC All]

16. When measuring sound waves, amplitude is the measure of A.pitch B.loudness C.resonance D.harmony E.none of these [Default] [MC Any] [MC All]

17. What kind of wave is a sound wave? Choose all that apply. A.compressional B.transverse C.electromagnetic D.longitudinal E.mechanical F.none of these [Default] [MC Any] [MC All]

18. You are parked at the railroad tracks and the train blows its whistle, with a frequency of 400 Hz, as it moves away you at constant velocity. Which statement most correctly describes the sound you will hear. A.The sound will be a steady 400 Hz pitch. B.A steady pitch with a frequency higher than 400 Hz. C.A steady pitch with a frequency lower than 400 Hz. D.The sound will be increasing in pitch. E.The sound will be decreasing in pitch. [Default] [MC Any] [MC All]

19. A string 3.0 meters long has a standing wave with 3 segments in it. What is the wavelength of that standing wave? A.0.5 m B.1.0 m C.1.5 m D.2.0 m E.2.5 m F.3.0 m G.4.5 m H.6.0 m [Default] [MC Any] [MC All]

20. When vibrations created by an external source cause an object to vibrate at the same frequency, this is called… A.Doppler Effect B.Beats C.Intensity D.Resonance E.Harmonics F.None of these [Default] [MC Any] [MC All]

21. If the temperature is currently 35°C, what is the speed of sound traveling through the air? A.331 m/s B.343m/s C.349 m/s D.352 m/s E.366 m/s F.none of these [Default] [MC Any] [MC All]