energy note outline energy is the ability to perform work units for energy is joules (j)--kgm²/s²
Post on 19-Jan-2016
213 Views
Preview:
TRANSCRIPT
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)
top related