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- 1. Multiple ChoiceA disturbance that travels through a medium as a longitudinal wavesoundwavelengthpitchfrequency
- 2. Multiple ChoiceBending of waves around an object (such as through a doorway)sounddiffractpitchvolume
- 3. Multiple Choicetravels through solids fastest because the molecules are closer togetherspeed of soundwavelengthfrequencyamplitude
- 4. Multiple ChoiceThe number of wavelengths that pass a point each secondfrequencywavelengthpitchamplitude
- 5. Multiple ChoiceMaterial (matter) through which a wave travelsmediumDoppler Effectsoundpitch
- 6. Multiple ChoiceHow high or low a sound is; depends on the frequency (greater frequency= higher pitch)pitchfrequencysoundmedium
- 7. Multiple ChoiceA wave in which the vibration is in the same direction as that in which the wave is traveling; sound waveslongitudinal waveocean wavetransverse wavemechanical wave
- 8. Multiple ChoiceThe part of a longitudinal wave where the particles of the medium are close together.rarefactioncompressioncresttrough
- 9. Multiple ChoiceA part in a longitudinal wave where the particles are spread apartcompressionrarefactioncresttrough
- 10. Multiple ChoiceA disturbance that transfers energy from one place to another without transferring energywavetroughpitchsound
- 11. Multiple ChoiceA reflected sound wavefrequencypitchechorarefaction
- 12. Multiple ChoiceA wave that requires a medium through which to travelmechanical wavechemical waveelectromagnetic wavepitch
- 13. Multiple ChoiceYou and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?sound waves reflecting off smooth, flat surfaces throughout the housesound waves moving around the large roomssound waves moving slowly through airsound waves refracting around corners in the empty rooms
- 14. Multiple ChoiceCletus wants to make ear protectors for people who work around loud jet engines at Hartsfield Airport in Atlanta. Which of the following materials should he experiment with for the best results?a material that produces sounda material that absorbs sounda material that transmits sounda material that amplifies sound
- 15. Multiple ChoiceAs the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave'sconcussion.amplitude.reflection.frequency.
- 16. Multiple Choice
After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram above?The distance represented by C would increase.The distance represented by C would decrease.The distance represented by D would increase.The distance represented by D would decrease. - 17. Multiple ChoiceWhich of the following would you hear as a low pitched sound?sound wave with a frequency of 50 Hzsound wave with frequency of 10,000 Hzsound wave with an intensity of 10 dBsound wave with an intensity of 100 dB
- 18. Multiple Choice
What is the Doppler Effect
Where the wavelength of a wave is shifted due to the source moving
When a wave is shifted when a body pushes the wave
Where the apparent wavelength of a wave is shifted due to the source moving
- 19. Multiple Choice
An observer moves towards a source of sound at a speed of 30 ms-1
If the frequency of the sound to a stationary observer is 500 Hz the frequency to the moving observer is
456 Hz
544 Hz
460 Hz
548 Hz
- 20. Multiple ChoiceIf a wave is traveling at 260 m/s and has a wavelength of 0.8 m/s, what is its frequency?208 Hz325 Hz430 Hz160 Hz
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