Equations Flashcards
1
Q
Weight =
A
Mass x gravitational field strength
2
Q
Work done =
A
Force x distance
3
Q
Force applied to spring =
A
Spring constant x extension
4
Q
Distance travelled =
A
Speed x time
5
Q
Acceleration =
A
Change in velocity \ time taken
6
Q
Resultant force =
A
Mass x acceleration
7
Q
Momentum =
A
Mass x velocity
8
Q
Kinetic energy =
A
O.5 x mass x (speed x2)
9
Q
Gravitational potential energy =
A
Mass x gravitational field strength x height
10
Q
Power (1)=
A
Energy transferred / time
11
Q
Power (2)=
A
Work done \ time
12
Q
Efficiency (1)=
A
Useful output energy transfer / total input energy transfer
13
Q
Efficiency (2)=
A
Useful power output / total power input
14
Q
Wave speed =
A
Frequency x wavelength
15
Q
Charge flow =
A
Current x time
