Additional Physics Equations

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Additional Physics Equations.

Speed = Distance / time

Acceleration= Change in velocity / time taken

a =(v-u) / t

v= final velocity

u = initial velocity

Weight = mass x gravitational field strength

W = m x g

Resultant force = force - force

Resultant force producing acceleration = F= ma or a= F/m

m = mass in kilograms (kg

a= acceleration in meters per second squared (m/s) squared

Work done = Force x distance

W = F x d

Gravitaional Potential energy = mass x gravitational field strength x height

Ep = m x g x h

Kinetic Energy = 1/2 x mass x speed squared

Ek = 1/2 x m x v squared

Kinetic energy Transferred = Work done by brakes

1/2mv2 = Fxd

Kinetic energy gained = Potential energy lost

Extension of elastic is directly proportional to Force = F=k x e

K = spring constant

Power = Work done (or energy transferred) / time taken

P = E/t

Momentum (kg m/s) = Mass (kg) x velocity (m/s)

P = m x v

Current = Charge / time

I = Q/t

Potential difference = Work done / charge

W =V x Q

Potential difference = Current x resistance

V = I x R

Energy = Power x time

E = P x t

Power = Current x potential difference

P = I x V

Energy transformed = Charge x Potential difference

E = Q x V

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