EQUATIONS Flashcards
weight = mass x gravity
W = m g
work done = force x distance
W = F s
force applied to a spring = spring constant x extension
F = k e
moment of a force = force x distance
M = F d
pressure = force normal to a surface/ area of that surface
p = f/a
speed = distance/time
v = s/t
Acceleration = change in velocity/time taken
a = change in v/t
resultant force = mass x acceleration
f = m a
momentum = mass x velocity
p = m v
kinetic energy = 0.5 x mass x (speed)2
Ek = 1/2mv2
Gravitational potential energy = mass x GFS x height
Ep = m g h
power = energy transferred/ time
P = E/t
power = work done/ time
P=W/t
Wave speed = frequency x wavelength
v = f ^Y
charge flow = current x time
Q = I t
Potential difference = current x resistance
V = I R
power = potential difference x current
P = V I
power = (current)2 x resistance
P = I2 R
energy transferred = power x time
E = P t
energy transferred = charge flow x potential difference
E = Q V
density = mass/volume
p = m/v
