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The Bouncing Ball Experiment A Ball Drops: Energy is needed to do everything. Light, sound, movement and heat are all examples of things that need energy to exist. Energy is defined as the ability to do work - to make something happen e.g. to move something. If something can apply a force over a distance, it has energy. The easiest way to detect energy is when it is changed from one form to another. To then measure how much energy is present, we can measure the amount of work done whilst the transformation is occurring. An object can store energy as a result of its position. When a ball is held at a height, it stores energy. This stored energy is referred to as potential energy. It is called potential energy because the ball has the potential to drop (converting the potential energy into kinetic/movement energy), if it is let go of. The...

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