The time for the mass to swing back and forth is called the period (T)
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The time for the mass to swing back and forth is called the period (T) of the pendulum. If your physics lab has the appropriate equipment available, you could verify that statement (d) above is the most accurate (with negligible friction). Now consider what might affect the pendulum’s period. Look at Fig. 4.1 again and list the physical parameters that could be changed. |
Explanation
The time period is the time in which the pendulum completes one oscillation, that is, time taken by the pendulum to swing back and forth. The first parameter on which the period depends is gravity. If there would have been no gravity, the pendulum would have an infinitely long time period. The second parameter is the length of the string to which it is attached. The longer the length, the longer will be the time period because the pendulum will cover a greater plane area. It also depends on friction and angle of twist only if they are not negligible. In this experiment, they are negligible.
Verified Answer
Period depends on length of the string, gravity, friction and angle of twist.
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