Efficiency
- Created by: Nikesha Patel
- Created on: 22-05-13 18:21
Fullscreen
Electrical appliances transfer energy from the power supply, but not all of the energy is used carefully - some always gets wasted
Energy is always conserved (it stays the smae, nothing is lost)
- When you're using (or making) electricity, no energy is actually lost
- It's just converted (changed) to different forms
- Some energy is converted to a useful form (the type of energy we want)
- The rest is wasted
- For example, a TV converts electrical energy to useful light and sound, as well as wasted heat
More efficent machines waste less energy
- The most efficent appliances convert more energy to useful forms and less to waste
- The efficency of an appliance (or a power station) can be found using this…
Comments
No comments have yet been made