## Presentation on theme: "Energy. What is energy? Energy is characterized as the ability to perform job-related."— Presentation transcript:

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1 Energy 2 What is energy? Energy is identified as the capability to execute job-related. 3 Types of Energy Tright here are multiple forms of power. We will certainly be talking about five (5) standard types of power. 1.Potential Energy 2.Kinetic Energy 3.Mechanical Energy 4.Thermal Energy 5.Electrical Energy 4 Potential Energy Potential energy is the stored power of place possessed by an object. 5 Potential Energy 6 Gravitational Potential Energy is the energy stored in an item as the outcome of its vertical position or elevation. Elastic potential power is the power stored in elastic products as the outcome of their stretching or compushing. 7 Kinetic Energy Kinetic power is the power of motion. An object that has activity - whether it is vertical or horizontal motion - has actually kinetic energy. wbelow m = mass of object v = speed of object 8 Kinetic Energy Example: Determine the kinetic power of a 625-kg roller coaster vehicle that is moving with a speed of 18.3 m/s. KE = 0.5*m*v2 KE = (0.5) * (625 kg) * (18.3 m/s)2 KE = 1.05 x105 Joules 9 Kinetic Energy Example: Missy Diwater, the former platform diver for the Ringling Brother"s Circus, had a kinetic power of 12 000 J just prior to hitting the bucket of water. If Missy"s mass is 40 kg, then what is her speed? KE = 0.5*m*v2 12 000 J = (0.5) * (40 kg) * v2 300 J = (0.5) * v2 600 J = v2 v = 24.5 m/s 10 Mechanical Energy Mechanical energy is the power that is possessed by an object because of its movement or as a result of its place.

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Mechanical energy have the right to be either kinetic power (power of motion) or potential energy (stored energy of position). 