4.1.2.2 Efficiency

Question 1

Efficiency =

Answer 1

= useful output energy transfer
————————————— x 100
Total input energy transfer

= useful power output
—————————— x 100
Total power input

Question 2

Sankey Diagram:

Answer 2

shows how much energy is transferred to different energy stores

Question 3

Efficiency:

Answer 3

the proportion of energy supplied that is transferred in useful ways