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2.02 labsheet

By bobeyyyyyyyy May 13, 2014 351 Words

Lab Sheet
Select the boy icon. Select the lowest pitch by selecting the bottom music note located to the bottom right of the lab activity. Select the GO button. What happened to the volume of the sound as the sound source moved past the observer? Record your observations. The sound started as a quiet sound and as it got closer to the boy it got louder and as it passed it got quieter Click your mouse in any area on the page. Select the reset button on the lab activity. Select the boy icon. Select the middle note located in the bottom right of the lab activity. Select the GO button. What happened to the pitch of the sound as the sound source moved past the observer? Record your observations. The pitch was higher and as it passed it got higher in pitch. Click your mouse in an area on the page. Select the reset button on the lab activity. Select the boy icon. Select the highest note located in the bottom right of the lab activity. Select the GO button. Describe the volume and pitch of the sound as the sound source moved past the observer? Record your observations. The pitch and sound got higher as it got closer to the boy.

Did the experiment prove or disprove your hypothesis? Support your conclusion based on results from the experiment and your knowledge of sound waves. Prove
What properties of sound determine the pitch of sound? How is this affected by motion of the sound source? Be specific. Frequency determines the pitch but wavelength is a part of a frequency.

What properties of sound determine the volume of sound? Is this affected by the motion of the sound source? Frequency
If the pitch of a sound decreases and the sound source is moving, is the sound source moving toward or away from the observer? Its moving away from the observer.
Describe at least two ways that your understanding of the Doppler effect could be applied to everyday life. When listing to a train pass by or a plane fly over you.

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