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Energy Note Outline. Energy is the ability to perform work Units for energy is Joules (J)--kgm²/s². Energy Note Outline. Mechanical Energy The sum of the both potential and kinetic energy of a system. Energy Note Outline. Kinetic Energy Energy that is cause by movement. - PowerPoint PPT Presentation
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Energy Note Outline
Energy is the ability to perform workUnits for energy is Joules (J)--kgm²/s²
Energy Note Outline
• Mechanical Energy– The sum of the both potential and kinetic energy
of a system
Energy Note Outline
• Kinetic Energy– Energy that is cause by movement
Energy Note Outline
• Gravitational potential energy– Energy caused by the height of an object
Energy Note Outline
• Elastic Potential Energy– Energy stored by compression or tension
Energy Note Outline
• Dissipated Energy– Thermal energy generated by friction or heat
transfer
Energy Note Outline
• Formula for kinetic energy (KE)– KE=½mv²• m is mass (kilograms)• v is velocity (m/s)
Energy Note Outline
• Formula for Gravitational Potential Energy (GPE)– PE=mgh• m is mass—always kilograms• g is acceleration due to gravity (10m/s²)• h is height of object ( always meters)