Using Energy
- Created by: Samuel1746
- Created on: 06-04-15 14:55
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- Using Energy
- Forms of Energy
- GPE: The energy of an object due to its position
- Kinetic Energy: The energy of a moving object
- Elastic Potential Energy: The energy stored in a springy object when stretched or squashed
- Chemical Energy: Energy stored in fuel, (including food. Released when chemical reactions take place
- Electrical Energy: Energy transferred by electrical current
- Useful Energy
- Useful Energy: Energy transferred where it is wanted, in the form that it is wanted
- Wasted Energy: Energy that is not usefully transferred
- Energy and Efficiancy
- Energy supplied = useful energy delivered + energy wasted
- Efficiency = useful transferred by the device / total energy supplied to the device
- Improving efficiancy
- Lubrication to reduce friction
- Use wires with as little resistance to reduce heating
- Streamline moving objects to reduce air resistance
- Cut out noise, e.g tighten loose parts to reduce vibration
- Forms of Energy
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