1 Flashcards
1
Q
Work done (J)
A
Force(N) x distance(m)
2
Q
Change in objects gravitational potential energy store
A
Weight x change in height
3
Q
Kinetic energy
A
1/2 x mass x speed^2
4
Q
Weight
A
Mass x gravitational field strength
5
Q
Efficiency
A
Useful output energy/ total input energy
6
Q
Power
A
Energy transffred/ time taken
7
Q
Density
A
Mass/volume
8
Q
Moment
A
Force x distance
9
Q
Moments in motoon/ equlibrium
A
F1 x d1 = f2 x d2
10
Q
Velocity equation
A
V = s/t
11
Q
Acceleration equation
A
A = v-u/t
12
Q
Resultant force
A
F= mxa
13
Q
Weight
A
W = mxg
14
Q
Force applied to a spring
A
F= kxe
15
Q
Momentum
A
P= mxv
