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)