Formulas Flashcards
1
Q
average speed =
A
distance moved /time taken
2
Q
acceleration =
A
change in velocity / time taken
3
Q
force =
A
mass x acceleration
4
Q
weight =
A
mass x g
5
Q
momentum =
A
mass x velocity
6
Q
moment =
A
force x perpindicular distance
7
Q
Q (charge) =
A
I x t (current x time)
8
Q
E (energy) =
A
Q x V (charge x voltage)
9
Q
V (voltage) =
A
I x R (current x resistsance)
10
Q
P (power) =
A
I x V (current x voltage)
11
Q
wave speed =
A
frequency x wavelength
12
Q
n (refractive index) =
A
sin i / sin r
13
Q
sin c (sin of critical angle) =
A
1/n (refractive index)
14
Q
effeciency =
A
useful energy output / total energy output
15
Q
GPE (gravitational potential energy) =
A
m x g x h (mass x gravitational field strength(N) x height)
