Simple Machines Question
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When water turns a turbine at a dam, the kinetic energy of the falling water changes to mechanical energy of the spinning turbine. Which of the following is an accurate description of the situation?
- The turbine is providing potential energy to the water.
- The total amount of energy in the system is decreasing.
- The water is doing work on the turbine.
- The total amount of energy is increasing.
- The water is converting its kinetic energy to potential energy.