Gravitational Potential Energy: Definition and Calculation

This lecture covers gravitational potential energy, explaining its definition and how to calculate changes in it. The presentation includes examples of lifting and lowering objects, such as a book and a football, to demonstrate the application of the gravitational potential energy formula. The lecture concludes with a summary of the key concepts discussed.

Calculate the change in gravitational potential energy for a 1.2 kg book lifted to a height of 1.5 meters.

What happens to the gravitational potential energy when an object is lowered? Provide an example.

If a football of mass 0.5 kg is kicked and its gravitational potential energy increases by 100 joules, how can we find the height to which it was kicked?