Efficiency Flashcards
1
Q
What is efficiency
A
Tells us what fraction of the energy we put into an appliance is transferred to useful forms of energy
2
Q
How do we calculate efficiency
A
Efficiency= useful output energy / total input
Efficiency = useful power output / total power input
3
Q
What can the answer not be over
A
100% or 1.0
4
Q
How do you increase efficiency
A
Reduce friction or loss of unneeded energy
