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Download Potential and Kinetic Energy Notes (9/28-29/2016)
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Transcript
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 Electrical 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 Example 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 Example Another Example Your Turn: At the bottom of your notes draw one picture of PE. At the bottom of your notes draw one picture of KE.
