Define the mean position and extreme position of a simple pendulum with the help of a diagram.

Look at the diagram of a simple pendulum. The bob of the pendulum is released at point 'X'. The period of the oscillation is found to be $0.25 \mathrm{s}$.

Calculate how long it takes for the bob of the pendulum to swing from X to Y.

Under what condition, the time period of a pendulum does not depend upon the amplitude of oscillation?

How does the following factor affect the time period of pendulum?

Length of the string

Look at the diagram of a simple pendulum. The bob of the pendulum is released at point 'X'. The period of the oscillation is found to be $0.25 \mathrm{s}$.

Can you change the time period of the pendulum? How?

Draw a well-labelled diagram of a simple pendulum and define the term:

Time period

Write the formula to calculate this term.

Define the following in one sentence:

Time period of a pendulum

Look at the diagram of a simple pendulum. The bob of the pendulum is released at point 'X'. The period of the oscillation is found to be $0.25 \mathrm{s}$.

State one measure you can take to ensure that the measurement of the time period of the pendulum is as accurate as possible.

How does the following factor affect the time period of a pendulum?

Mass of the bob

How does the following factor affect the time period of a pendulum?

Amplitude.