Final answer:
The pendulum has maximum potential energy at the highest points of its swing (i and iii just before the change in direction) and maximum kinetic energy as it passes through the midpoint (ii). Therefore, the types of energy associated are potential at the highest points and kinetic at the midpoint with a mixture of both just before reaching the top.
Step-by-step explanation:
Types of Energy in a Swinging Pendulum When considering the types of energy associated with a swinging pendulum at different points in its cycle:i. the moment at which it completes one cycle, just before it begins to fall back towards the other end - At this highest point in its swing, the pendulum has maximum potential energy due to its height and minimum kinetic energy since its velocity is zero.ii. the moment that it is in the middle between the two ends - As the pendulum passes through the midpoint of its swing, it possesses maximum kinetic energy because it is at its highest speed and minimal potential energy.
iii. just before it reaches the end of one cycle (just before instant i.) - Here, the pendulum has both potential energy and kinetic energy, with potential energy increasing as it heightens, and kinetic energy decreasing as it prepares to change direction.Thus, the correct answer is c. i. potential, ii. kinetic, iii. potential and kinetic energy.The types of energy associated with a pendulum are:At the moment it completes one cycle, just before it begins to fall back towards the other end: Kinetic energyAt the moment it is in the middle between the two ends: Potential and Kinetic energyJust before it reaches the end of one cycle: Potential and Kinetic energy