Question

Water at the bottom of a waterfall is slightly warmer than at the top. Give reasons.

Answer 1

Thermal and kinetic energy: Thermal energy is another form of kinetic energy as thermal energy is formed by the kinetic energy of colliding particles.

Reason: The water as it falls from the top of the waterfall is at a high potential. The potential energy is transformed into kinetic energy at the waterfalls.

The water reaching the bottom of the waterfall does a lot of work as kinetic energy falls at the bottom. Thus, this kinetic energy is converted to heat, the change in energy from potential to kinetic energy results in a slight temperature change.