12PYC Equations

current from charge number density

hydraulic pressure from depth

definition of electric current

doppler frequency

double-slit experiment equation

energy efficiency

kinetic energy

elastic potential energy

gravitational potential energy

Hooke’s law

diffraction grating equation

Kirchhoff’s junction rule

Kirchhoff’s loop rule

Newton’s 2nd law in original form

Newton’s 2nd law in momentum form

frequency of n-th harmonic in term of fundamental frequency

definition of momentum

intensity of polarised light

definition of power

relationship between force, power and speed

definition of pressure

electrical power

definition of resistance (Ohm’s law)

resistance from material properties including resistivity

definition of density

definition of strain

definition of stress

SUVAT equation without s

SUVAT equation without a

SUVAT equation without t

SUVAT equation without v

torque / moment of force

upthrust/buoyant force from fluid volume

upthrust/buoyant force from pressure differnce

wave speed

definition of work done

Young’s modulus

generalised spring constant

the law of momentum conservation

definition of torque (moment of force)

conditions of equilibrium

definition of voltage (a.k.a. potential difference or e.m.f.)

relationship between wave intensity and amplitude

mechanical energy conservation

distance between two adjacent nodes in a stationary wave

path difference for constructive interference

equation for double-slit interference

equation for diffraction gratings

slit separation and slit density in diffraction gratings

alpha decay of a nucleus

beta decay of a neutron

beta decay of a proton

beta decay of an up quark

beta decay of a down quark