This applet shows a pendulum suspended on
a 'rigid string'. One can drag the pendulum to it's starting position. Once in
motion, the pendulum can be 'caught' by clicking and holding the mass when it
has reached it's maximum angle. Thus, the pendulum can be brought to it's new
starting position. The experimental period is shown in the panel above the
pendulum itself and is obtained by multiplying the time needed to make half an
oscillation by two. The theoretical period, on the other hand, is obtained by a
formula which is valid only for small angles., i.e,
where
**T** is the period of the oscillations, **L** is the length of the
string and **g** is the acceleration due to gravity. |