The water at the bottom of a waterfall is slightly warmer than that at the top because part of the
potential energy raises the water temperature
water absorbs latent heat from the atmosphere
kinetic energy is changed intyo internal energy
dropping mass of water increases the heat capacity
A and C above
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Answer: option E
Explanation:
Water is slightly warmer at the bottom of a waterfall than at the top because the gravitational potential energy is converted first to kinetic energy of the falling water, and finally to heat energy as it comes to rest at the bottom.
The correct answer is **E. A and C above**. Here's why:
A. **Potential energy raises the water temperature**: When water falls from a height, it has potential energy due to its position. As it falls, this potential energy is converted into kinetic energy. When the water hits the bottom, some of this kinetic energy is converted into heat, slightly raising the water temperature.
C. **Kinetic energy is changed into internal energy**: As mentioned above, the kinetic energy of the falling water is partially converted into heat (a form of internal energy) when it hits the bottom.
So, both A and C are correct. Hence, the answer is E. A and C above.
potential energy(possessed by the water at a height)is converted to kinetic as the water falls, which in turn is converted to heat(kinetic energy of the water molecules increases thereby, the water becoming warm) when the water gets to the bottom of the fall. compare to the potential and kinetic energy of a body under free fall.
C id correct 
In a typical waterfall, water rushes from the top down to the bottom. Remember that kinetic energy is the energy possessed by a body due to its motion. The water therefore possesses kinetic energy because it is rushing. As a result of the conservation of energy, energy is not Lost by the waterfall, but rather the kinetic energy is converted into internal (heat energy) at the bottom, thus making the water warm.hence option C is correct 
C is correct
In a typical waterfall, water rushes from the top down to the bottom. Remember that kinetic energy is the energy possessed by a body due to its motion. The water therefore possesses kinetic energy because it is rushing. As a result of the conservation of energy, energy is not Lost by the waterfall, but rather the kinetic energy is converted into internal (heat energy) at the bottom, thus making the water warm.
Hence, option C is correct
At height H it has only potential energy then at the bottom it possess kinetic energy which is converted in internal energy due to the fall
it D
otential energy(possessed by the water at a height)is converted to kinetic as the water falls, which in turn is converted to heat(kinetic energy of the water molecules increases thereby, the water becoming warm) when the water gets to the bottom of the fall. compare to the potential and kinetic energy of a body under free fall.
