Work,power And Efficency Flashcards
1
Q
Energy and work
A
When a force causes a body to move, work is being done on the object by the force. Work is the measure of energy transfer when a force (F) moves an object through a distance (d).
2
Q
When work is done energy is transferred so work done is equal to…
A
Energy transferred= work done
3
Q
How do you calculate work done
A
Work done= force x distance
4
Q
How to calculate power
A
Power = work done/time
5
Q
How is efficiency measured
A
Efficiency= useful energy transferred/ total energy supplied
6
Q
How to work out percent of efficiency
A
Efficiency x 100
