Why are the turbines for hydroelectric dams located far below the top of the dam?

1 point
to allow the kinetic energy of the water to increase greatly before reaching the turbines
to ensure that the water does not lose too much potential energy before reaching the turbines
Other:

to allow for a greater amount of water to pass through the turbines and generate more power

A child is swinging back and forth on a swing. At which point, or multiple points, in their swinging would they reach the maximum kinetic energy?

2 points

The child would reach maximum kinetic energy at two points during their swinging: at the lowest point of the swing (when they are closest to the ground) and at the highest point of the swing (when they are farthest from the ground).

A child is swinging back and forth on a swing. At which point, or multiple points, in their swinging would they reach the maximum kinetic energy?

The child would reach maximum kinetic energy at a single point during their swinging: at the lowest point of the swing (when they are closest to the ground). At the highest point of the swing (when they are farthest from the ground), the child would have maximum potential energy but minimum kinetic energy.