$h\text{ (cm)}$$t_1$ $t_2$ $t_1 + t_2$ $T\text{ (s)}$ $T^2\text{ (s}^2\text{)}$
20.0046.40 45.0
40.0041.90 44.9
60.0038.00 38.2
80.0033.40 33.4
100.0029.00 28.5
(1)
- Plot a graph of $h$ on the vertical axis against $T^2$ on the horizontal axis.
- Determine the slope of the graph and the intercept on the vertical axis.
- State two precautions you took to ensure accurate results.
(2)
(i) Why is a spherical bob preferred to a bob of other shapes for use in the experiment?
(ii) State two examples of simple harmonic motion other than a simple pendulum.
$h\text{ (cm)}$ | $t_1$ | $t_2$ | $t_1 + t_2$ | $T\text{ (s)}$ | $T^2\text{ (s}^2\text{)}$ |
20.00 | 46.40 | 45.0 | |||
40.00 | 41.90 | 44.9 | |||
60.00 | 38.00 | 38.2 | |||
80.00 | 33.40 | 33.4 | |||
100.00 | 29.00 | 28.5 | |||
(2)
(i) Why is a spherical bob preferred to a bob of other shapes for use in the experiment?
(ii) State two examples of simple harmonic motion other than a simple pendulum.