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Law of Conservation of Energy
Review the Law of Conservation of Energy Presentation below. DES login information. PBS login information.
Law of Conservation of Energy fullscreen version | Law of Conservation of Energy text version
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Energy Transformations
Review the Energy Transformation Presentation below. PBS login information.
Energy Transformation fullscreen version | Energy Transformation text version
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Mechanical
Mechanical energy is the sum of the kinetic energy and the potential energy of objects in a system. This includes elastic potential energy and gravitational potential energy. Some examples of mechanical energy are:
- swings,
- bicycles,
- automobiles, and
- roller coasters.
The mechanical energy of a system generally remains constant. When the energy remains constant, it is only transformed between different types of mechanical energy (kinetic, gravitational potential, and elastic potential).
Read the page Mechanical Energy from the Physics Classroom to learn more.
