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Listed under:  Mathematics  >  Measurement  >  Units of measurement  >  Watts
Interactive resource

Energy and power

Learn how work and energy are related, and how the energy of systems can be used to solve problems about motion. Identify situations in which mechanical energy is conserved. Calculate the power of moving objects. This resource consists of a video in six sections with a supporting web page containing background material.

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All about engines

What does 'horsepower' really mean? And how do engines work? Join Luke and Abhi from MIT to find out! As Abhi explains, engines produce power by forcing a mixture of fuel and air into a tight space and then burning it. Piston engines and turbine engines do this in similar, yet different ways. After watching this video, ...