Search form. Recovery after Bariatric Surgery. Most people recover very quickly after weight loss surgery and feel ready to go back to normal activities after a few days. It is important to remember though that you have had a major operation and to take it steady for a few weeks.
A rock on top of a mountain contains POTENTIAL ENERGY. The reason for this is that potential energy means that it has the potential to become another form of energy, like kinetic. If a rock is sitting on a mountain, it's not moving. Once it moves, it has KINETIC ENERGY. For example; I'm sitting on top of a mountain.
Oil shale and tar sands are ancient fossil deposits containing petroleum that, with significant energy, can be converted into transportation fuels. 1  Oil shale is not oil, but a rock that contains a compound called kerogen. 2  It has been calculated that, per ton, oil shale contains one-tenth the energy of crude oil.