Essential Physics Formulas & Equations

Posted on May 18, 2024 in Physics

Mechanics

Kinetic Energy

Kinetic energy = ½ x mass x velocity squared

(J) (kg) (m/s)

Gravitational Potential Energy (GPE)

GPE = mass x gravitational field strength x height

(J) (kg) (N/kg) (m)

Weight

Weight = Mass x Gravity

N = kg x N/kg

Density

DENSITY (ρ – greek letter) = mass (m) / volume (v)

Resultant Force

RESULTANT FORCE = MASS X ACCELERATION

F = m x a

Force (Springs)

FORCE = SPRING CONSTANT x EXTENSION

N = N/m or N/cm x cm or m

Moment

MOMENT = FORCE x DISTANCE

Nm or Ncm = N x m or cm

Work Done

WORK DONE = FORCE X DISTANCE

(J) (N) (m)

Motion

Speed

SPEED (m/s) = distance travelled (m) / time taken (s)

Average Acceleration

Average acceleration (m/s²) = change in velocity (m/s) / time taken (s)