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### 13 Cards in this Set

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 The SI unit of mass is measured in ______________. kilograms The acceleration of any object falling toward Earth as a result of the gravitational force is ________ m/s^2 9.81 The SI unit for height is measured in _________. metres What is the formula for gravitational potential energy? Ep = mgh What is the formula for electric potential energy? Ee = qV What is the formula for the kinetic energy of a moving object? Ek = 1/2mv^2 What is the formula for power? P = Ee/t An energy servant can do about _____ MJ of work in an eight-hour shift. 2.9 Energy lost due to conversion. Thermal exhaust or waste energy The total energy of the motion of all the particles of a substance Thermal energy A relative measure that compares the input energy and output energy of a conversion % efficiency One of the most common ways to reduce waste energy is to use _________. insulation A relatively new technology that involves modifying existing buildings and equipment using new parts. retrofitting