Energy, Work & Power
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What you'll learn
Energy stores and how energy is transferred between them, the formulas for kinetic and gravitational potential energy, conservation of energy, and how work, power and efficiency are calculated.
- Energy is stored in different forms
- Energy is transferred by several mechanisms
- Kinetic energy depends on mass and the SQUARE of speed
- Gravitational potential energy depends on height
- Total energy is always conserved
- Work done transfers energy using a force over a distance
- Power is how quickly energy is transferred
- Efficiency compares useful output energy to total input energy