10.4 Energy and efficiency Flashcards

1
Q

Work done is equal to?

A

» Force x distance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How do you derive the equation for output power?

A

» Distance = Velocity x time
» Power = Work done/ Time
Power = Fvt/t
Power = Fxv

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The equation for efficiency is?

A

» Useful energy transferred by the machine/Energy supplied to the machine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly