physics formulas

What is the formula for density?

mass / volume

What is the formula for acceleration?

velocity / time

What is the formula for force?

mass × acceleration

What is the formula for momentum?

mass × velocity

What is the formula for impulse?

force × time

What is the formula for weight?

mass × gravity

What is the formula for moments?

force × perpendicular distance

What is the formula for pressure in solids?

force / area

What is the formula for pressure in liquids?

density × depth × acceleration due to gravity

What is the formula for energy transferred (thermal)?

mass × specific heat capacity × temperature change

What is the formula for spring constant?

force / extension

What is the formula for work?

force × distance

What is the formula for gravitational potential energy (G.P.E)?

mass × height × gravity

What is the formula for kinetic energy (K.E)?

½ × mass × velocity²

What is the formula for wave speed?

frequency × wavelength

What is the formula for refractive index using angles?

sin(incident angle) / sin(refracted angle)

What is the formula for critical angle?

Sin c = 1 / refractive index

What is the formula for voltage (Ohm’s Law)?

current × resistance

What is the formula for current?

charge / time

What is the formula for potential difference and E.M.F?

work / charge

What is the formula for energy using power?

power × time

What is the formula for energy using p.d and current?

p.d × current × time

What is the formula for power using work?

work done / time taken

What is the formula for power using electricity?

p.d × current

What is the alternative formula for power using resistance?

current² × resistance

What is the formula for power loss in transformers?

current² × resistance

What is the formula for the Hubble constant?

velocity of galaxy / distance to galaxy

What is the formula for the age of the universe?

1 / Hubble constant