Question

Choose all correct statements about a pendulum Select one or more: O a. The period T is almost the same for small initial displacment angles. There is some change at large angles. b. If the weight is increased, the time T for one complete oscillation inceases. T, also called the period, is measured in the upper left. c. If the length of the pendulum is increased, the time T for one back and forth ocillation is increased. d. The sum of the potential energy and the kinetic energy is constant e. If the weight is increased with the same starting height, the total energy increases.

Choose all correct statements about a pendulum

Select one or more:

a. The period T is almost the same for small initial displacement angles. There is some change at large angles.

b. If the weight is increased, the time T for one complete oscillation increases. T, also called the period, is measured in the upper left.

c. If the length of the pendulum is increased, the time T for one back and forth ocillation is increased.

d. The sum of the potential energy and the kinetic energy is constant

e. If the weight is increased with the same starting height, the total energy increases.

Answer 1

Solution: The expression for time period of a pendulum is given below: 7 T = 21 g The period of the pendulum depends only on the length. According to Conservation of energy, the total energy is always a constant. Hence, the correct options are, If the length of the pendulum is increased, the time I for one back and forth oscillation is increased. The sum of the potential energy and the kinetic energy is constant