Formulas

• average speed = Distance / time
• velocity = displacement / time
• acceleration = final velocity - initial velocity / time taken to make the change
• period of a pendelum = total time / nº of swings
• v= d/t
• v= s/t
• a = (v-u)/t
• weight = mass x gravitational strength
• F = m*g
• Force = mass * accelaration
• F = ma
• Density = mass /volume
• density = m/v
• Hooke's Law = force = spring constant x extension
• Pressure= force / area
• P = F/A
• Fluid pressure = density x gravity x height
• P = density x g x h
• Moment = force x perpendicular distance from pivot
• M = Fd
• Sum of clockwise moments = sum of anti-clockwise moments
• F1 x d1 = F2 x d2
• Momentum = mass x velocity
• p (momentum) = m x v
• Force = change in momentum / time
• F = delta p / t
• impulse = change in momentum
• Ft = mv - mu
• pressure 1 x volume 1 = pressure 2 x volume 2
• p1 x v1 = p2 x v2
• Constant = pressure x volume
• PV = constant
• Energy = mass x s.h.c x temp. change
• E = m x c x delta T
• alpha decay = 4 He 2
• Beta decay = 0 e -1