Physics equations

Physics25 CardsCreated 4 months ago

Essential physics formulas include acceleration as change in velocity over time, velocity as distance over time, force as mass times acceleration, work done as force times distance, power as energy transferred over time, volume as length times depth times breadth, pressure as force divided by area, density as mass divided by volume, and charge as current times time.

Acceleration

Acceleration = change in velocity/time taken

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Key Terms

Term
Definition

Acceleration

Acceleration = change in velocity/time taken

Velocity

Velocity = distance travelled/ time taken

(Resultant) Force

Force = mass x acceleration

Work done

Work= force x distance

Power

Power = energy transferred/time

Volume

Volume = length x depth x breadth

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TermDefinition

Acceleration

Acceleration = change in velocity/time taken

Velocity

Velocity = distance travelled/ time taken

(Resultant) Force

Force = mass x acceleration

Work done

Work= force x distance

Power

Power = energy transferred/time

Volume

Volume = length x depth x breadth

Pressure

Pressure = force/area

Density

Density = mass/volume

Charge

Charge = current x time

Voltage

Voltage = energy transferred/charge

Resistance

Resistance = voltage/current

Frequency

Frequency = waves/second

Momentum

Momentum = mass x velocity

Moment

Moment = force x perpendicular distance from pivot

Voltage

V=IR

Wave speed

Wave speed = frequency x wavelength

Angle of incidence

Angle of incidence = angle of reflection

Refractive index

Refractive index (n) = sin(i)/sin(r)

Refractive index

Refractive index (n) = 1/sin(critical angle)

Power

Work done/ time taken

Density

Density = mass/volume

Pressure difference

Pressure difference = height x density x gravitational field strength

Boyle’s law

p1 x V1 = p2 x V2

OR p1/p2 = V2/V1

P1/T1 = P2/T2

P1/T1 = P2/T2

Kelvin

0*C = 273K