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Potential & Kinetic Energy. Energy. The ability to do work The ability to cause matter to move The ability to cause matter to change Measured in joules & calories. Types of Energy. Radiant (light, electromagnetic) Nuclear (atomic) Mechanical Heat (thermal) Sound Chemical

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## Potential & Kinetic Energy

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**Energy**• The ability to do work • The ability to cause matter to move • The ability to cause matter to change • Measured in joules & calories**Types of Energy**• Radiant (light, electromagnetic) • Nuclear (atomic) • Mechanical • Heat (thermal) • Sound • Chemical You will see other types or forms of energy in books and on the Internet**Energy can be divided into two general categories:**• Potential • Kinetic**Potential Energy**• Stored energy • Energy of position • The amount of usable energy in a body at rest • Sometimes called GRAVITATIONAL POTENTIAL ENERGY**Potential Energy**• Can be calculated mathematically • PE = (weight) (height)**Potential energy can be increased by:**• Increasing height • Increasing mass**Kinetic Energy**• Energy of motion • Energy an object has because it is moving**Kinetic Energy**• Can be calculated mathematically • KE = (mass x velocity2)/2**Kinetic energy can be increased by:**• Increasing mass • Increasing speed

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