Physics formulas

Pregunta	Respuesta
Gravitational potential energy	Ep = m g h
Kinetic energy	Ek = 1 ---- m v2 (squared) 2
Weight	W = m g
Work	W = F s
Power	P = E/t OR P = W/t
Efficiency	Efficiency = Useful energy --------- x100 Total energy
Charge	Q = I t
Elastic potential energy	Ee = half k e2 (squared)
Potential Difference (Ohm's Law)	V = IR (Volts = Current x Total resistance)
Power	P = VI
Power	(I x I) x R
Energy Transfer	E = Pt
Energy Transfer	E = QV
Density	mass Density = --------- Volume
Pressure	force normal to a surface Pressure = ----------------------------------- area of that surface
Change in pressure or volume	p1 x v1 = p2 x v2
Acceleration	change in velocity / time taken
Uniform motion w/ time	V = U + at
Uniform motion w/o time	V(Sq) - U(Sq) = 2as
Momentum	P = mv
Newtons 2nd law	F = ma
Acceleration	(v-u) / t
Inertial mass	Force/acceleration
Newtons 3rd Law	F1 = F2 (when two objects interact the forces are equal and opposite)
Force in momentum change	F = m (v-u) / t
Moment	M = Fd
Pressure due to a column of liquid	p = height of column x density of liquid x gravitational field strength
Force in a spring	F = ke

Resumen del Recurso

	Creado por Oliver Faragher hace más de 8 años