Pendulum Motion Experiment

The period of a pendulum is dependent on

• weight of bob

• length of pendulum

• gravity

• starting position of bob

Which length of the pendulum given below will oscillate the fastest

• 0.75 m

• 75 cm

• 120 cm

• 2 m

The gravitational acceleration of Earth is  $9.81\ ms^{-2}$    and that of the Moon is  $1.62\ ms^{-2}$ .  which of the following statements are correct

• The pendulum oscillates faster on the Moon.

• The pendulum oscillates slower on the Moon.

• The pendulum has the same oscillation rate Earth as on the Moon.

• The pendulum does not oscillate on the Moon

Which of the following correctly describes the movement 1 period of the pendulum

• B to A to B to C

• A to C and back to A

• B to C to B to A to B

• A to C

If T is the period of the pendulum, l its length and g is the gravitational acceleration, which of the following correctly describes the equation for a period of a pendulum

• $T\ =\ \pi\sqrt{\frac{l}{g}}$

• $T\ =\ \pi\sqrt{\frac{g}{l}}$

• $T\ =\ 2\pi\sqrt{\frac{g}{l}}$

• $T\ =\ 2\pi\sqrt{\frac{l}{g}}$

If I want to increase the period of the pendulum I would

• Make the bob of the pendulum lighter

• Make the length of the pendulum longer

• Start the motion of the pendulum by displacing the bob of the pendulum further from its center

• None of the above

Mutu, Ali and Chan each did 3 measurements to determine the period of a pendulum. They measured ten periods of the pendulum oscillations to do so. The values they reported in seconds were as follows:

Mutu - 1.67, 1.72, 1.66

Fara - 1.77, 1.91,1.59

Chan - 1.75, 1.90,1.96

Tim - 1.69,1.85,1.77

Whose measurements are the most consistent?

• Mutu

• Fara

• Chan

• Tim

Why does a pendulum that is in motion eventually stops?

• It loses energy due to frictional forces

• The starting displacement of the oscillation was too small

• It encounters air resistance

• All of the above

Mutu, Ali and Chan each did 3 measurements to determine the period of a pendulum. They measured ten periods of the pendulum oscillations to do so. The values they reported in seconds were as follows:

Mutu - 1.67, 1.72, 1.66

Fara - 1.77, 1.71,1.68

Tim - 1.79,1.81,1.85

Chan - 1.65, 1.70,1.76

Based on the values presented, whose readings indicate a systematic delay in stopping the stopwatch when the measurements were done?

• Mutu and Tim

• Tim only

• Fara and Chan

• None of the above