Obviously - it has mass, and it is not at ground level.
Potential.
At the top, since potential energy is referred to an objects location, the highest the object the highest its potential energy.
The same as any other falling object. When it is at the top, it has gravitational potential energy; as it falls, that's converted to kinetic energy.
Both are forms of energy. Potential energy is the available energy that could be used and Kinetic energy is the energy actually being used. Think of Potential energy as being a high cliff with water on top. The higher the cliff the more energy available. If no water is falling though, there is noting being used, But the potential for falling water is still there. Kinetic energy is the water that actually falls.
becomes kinetic energy
Yes.
Potential.
The water at the top of a waterfall has a great amount of potential energy.
At the top, since potential energy is referred to an objects location, the highest the object the highest its potential energy.
An object that is stationary and at the top of something has "potential energy". (If you're getting into equations, it's PE = mgh, where PE = potential energy, m = mass of the object, g = the force of gravity, and h = the height of the object.)
So the potential energy is the energy in the car at the top of the first slope. It changes into kinetic energy (Speed with mass) as it rolls down the hill. Then the electric motor winds it back up the hill, putting potential energy in the system again.
Dams
The same as any other falling object. When it is at the top, it has gravitational potential energy; as it falls, that's converted to kinetic energy.
potential energy at the top then kinetic energy optional- then sound energy (the crashing noise at the bottom)
Both are forms of energy. Potential energy is the available energy that could be used and Kinetic energy is the energy actually being used. Think of Potential energy as being a high cliff with water on top. The higher the cliff the more energy available. If no water is falling though, there is noting being used, But the potential for falling water is still there. Kinetic energy is the water that actually falls.
Once the skiers go uphill by a cable car or lift, they gain potential energy. This potential energy is converted into kinetic energy once the skiers start to ski down the slope.
The water at the bottom of the waterfall has lost some potential energy in falling the height of the fall, but it has gained kinetic energy because it is moving faster than it was at the top. For a free flowing waterfall, ie one which has not had water diverted into a hydro power turbine on the way from top to bottom, the total energy ie potential and kinetic must be the same at the bottom as at the top.