4.4

4.4

21 June 2011

4.4 recall and use the relationship:

efficiency = useful energy output

total energy input

Version 1

Efficiency = Useful Eout / Total Ein x 100

Useful Eout = _Useful_ __Energy_ _Output_ ( J )

Total Ein = __Total__ __Energy_ __Input__ ( J )

Efficiency = Efficiency ( % )

Version 2

Efficiency = Useful Eout / Total Ein

Useful Eout = _Useful_ _Energy_ _Output_ ( J )

Total Ein = __Total__ _Energy__ _Input_ ( J )

Efficiency = Efficiency ( _No_ _Units_; a number between 0 and 1 )

Efficiency.ppt Download this file

% efficiency energy.swf Download this file