Efficiency is a measure of how much work or energy is conserved in a process.
Energy efficiency calculations worksheet gcse.
η efficiency greek letter eta.
In many processes work or energy is lost for example as waste heat or vibration.
The efficiency is the energy output divided by the energy input and expressed as a percentage.
A perfect process would have an efficiency of 100.
Worksheet on calculations using the efficiency equation.
The efficiency can be calculated as a decimal or a percentage.
Also links in with other areas of p1 3 other than energy efficiency.
Part of the aqa p1 3 syllabus.
Modern energy saving lamps.
Suitable for ha year 9s or gcse students.
The efficiency of a device is the proportion of the energy supplied that is transferred in useful ways.
Energy is a key principle in physics as it allows work to be done.