A tuning fork by itself produces a faint sound. Try each one of the following four methods for…

A tuning fork by itself produces a faint sound. Try each one of the following four methods for obtaining a louder sound from it. Explain how each method works. Explain also any effect on the time interval for which the fork vibrates audibly. (a) Hold the edge of a sheet of paper against one vibrating tine. (b) Press the handle of the tuning fork against a chalkboard or a tabletop. (c) Hold the tuning fork above a column of air of properly chosen length as in Example 18.6. (d) Hold the tuning fork close to an open slot cut in a sheet of foam plastic or cardboard as shown in Figure Q18.13. The

A tuning fork by itself produces a faint sound. Try each one of the following four methods for obtaining a louder sound from it. Explain how each method works. Explain also any effect on the time interval for which the fork vibrates audibly. (a) Hold the edge of a sheet of paper against one vibrating tine. (b) Press the handle of the tuning fork against a chalkboard or a tabletop. (c) Hold the tuning fork above a column of air of properly chosen length as in Example 18.6. (d) Hold the tuning fork close to an open slot cut in a sheet of foam plastic or cardboard as shown in Figure Q18.13. The slot should be similar in size and shape to one tine of the fork. The motion of the tines should be perpendicular to the sheet.

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