Question 19.23: a Sketch graphs to show how each of the following quantities...
a Sketch graphs to show how each of the following quantities changes during the course of a single complete oscillation of an undamped pendulum: kinetic energy, potential energy, total energy.
b State how your graphs would be different for a lightly damped pendulum.
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a
b The total energy of the pendulum would decrease gradually and hence the maximum values of k.e. and p.e. would also decrease.

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