Question

Water behind a dam has potential energy. moving water, such as in a waterfall or a rapidly flowing river, has this?

Answer 1

kinetic energy

Figure 6.6 Water behind a dam has potential energy. Moving water, such as in a waterfall or a rapidly flowing river, has kinetic energy.  credit dam: modification of work by "Pascal"/Flickr; credit waterfall: modification of work by Frank Gualtieri .