Yes, More potential energy yES
the object has a potential energy relative to , for example, the bottom of the hill, or the bottom of the slide.
The potential energy will double too.
Is it changing from kinetic energy to potential energy
588,000 joules
588,000 J
Potential energy at the top and kinetic energy at the bottom.
588,000 J
Any object which is moving from a lower level to a higher level is converting kenetic energy (ie climbing a set of stairs for example) to potential energy. A car which has been parked at the top of a hill has used kenetic enegry to get up there and has potential to roll down to the bottom of the hill if the brake is released.
Potential energy is "stored energy" because of its position in space. For example, a car parked at the top of a hill, or the water behind a dam.
Gravitational potential energy is the type of energy stored in an object if it is raised in a gravitational field. A rock on top of a hill is a good example of this as it has a higher potential energy than a rock at the bottom of a hill.
The potential energy gets less until the ball gets to the bottom of the hill, at which point the potential energy is zero. The potential energy that is lost, gets converted to Kinetic energy of the ball that goes faster and faster as it gets more and more of the Potential energy.
On a pendulum, the greatest potential energy is at the highest point of the swing on either side, and the greatest kinetic energy is at the bottom of the swing. On a roller coaster, the greatest potential energy is at the top of a hill, and the greatest kinetic energy is at the bottom of the hill.