Physics lab. These are pretty simple questions but I suck with physics. Could yo
ID: 1769793 • Letter: P
Question
Physics lab. These are pretty simple questions but I suck with physics. Could you try to answer based on what you think might happen? Thanks! 6.2.2 Waveform of a Pure Tone Obtain a pair of tuning forks and adjust them to be close (but not the same) in frequency. Strike one of the tuning forks with a rubber mallet near the middle of the tines, holding your ear close to hear the sound. The lowest and probably loudest tone is the fundamental frequency. Depending on how it is struck, you may hear some higher frequencies, called harmonics or overtones, as well. Experiment with your technique to minimize overtones. Do not hit the tuning fork with anything metal, as this produces more overtones and may damage the tines. The pressure pulses of sound waves traveling through air cause a microphone's diaphragm to move in and out. This motion is translated into changes in the voltage of an electrical signal, which is recorded on the computer and displayed on a graph of voltage versus time. Attach a microphone to Channel One of the LabPro interface, which is attached by a cable to the computer. Open the file ToneExperiment. While holding the microphone near the opening of the wooden box beneath the tuning fork, strike the tuning fork with a mallet and after a 1-2 second delay, click the Collect button in the toolbar or hit Return on the keyboard. . A wavy line representing the sound should appear on the graph. You can change the scale of each axis by clicking on the highest or lowest tick mark and typing in a different number. To obtain precise x and y coordinates, select the Examine' tool (looks like x?). As you move the cursor along the waveform, the level and time of each point is displayed in a small window. Use the arrows on each a that is outside the window. xis to scroll to the data 134Explanation / Answer
Q. 5. Frequency :- pitch of the sound is related to frequency. high pitch sound corresponds to high frequency.
Amplitude :- Amplitude determines the loudness of the sound perceived by our ear higher will be the amplitude more will be the loudness.
Q.6. When you hit it harder. The tuning fork makes the same sound, but louder. The frequency remains the same. The wavelength remains the same, because the wavelength is determined by the frequency and how fast the wave moves. In both cases the waves are moving at the speed of sound in air. but the only difference is the change in amplitude. The harder your strike the tuning fork, the larger the amplitude. We sense this difference as the difference in volume of the two waves.
Q.7. The harder your strike the tuning fork, the larger the amplitude. We sense this difference as the difference in volume of the two waves. As well hitting harder will produce more overtones.
Q.8. Hitting harder will produce more amplitude i.e. greater displacement of air molecules creating larger rarefactions and larger compressions or higher density difference. This may produce certain temperature difference which further leads to change in the speed of sound in the air.
Q.9. Again as large compression leads to increase in pressure and hence temperature and hence speed of sound is directly proportional to square root of the absolute temperature so speed of the sound increases.