Equations Flashcards
1
Q
W=mg
A
Weight= mass x gravitational field strength
2
Q
W=Fs
A
Work done= force x distance
3
Q
F=ke
A
Force applied to string= spring constant x extension
4
Q
M=fd
A
Moment= force x distance
5
Q
P=f/a
A
Pressure=force/area
6
Q
S=ut
A
Distance travelled=speed x time
7
Q
A= u/t
A
Acceleration= change of velocity/time taken
8
Q
F=ma
A
Resultant force= mass x acceleration
9
Q
P=mu
A
Momentum= mass x velocity
10
Q
Ek=1/2mu^2
A
Kinetic energy=0.5 x mass x (speed)^2
11
Q
Ep=mgh
A
Gravitational potential energy= mass x gravitational field strength x height
12
Q
P=e/t
A
Power=energy transferred/time
13
Q
P=w/t
A
Power=work done/time
14
Q
E=pt
A
Energy transferred= power x time
15
Q
Efficiency=
A
Efficiency=useful power output/total power output
