Table of Contents
Common IGCSE Physics Equations #
Speed Equation: #
Where:
- v = speed (m/s)
- d = distance (m)
- t = time (s)
Acceleration Equation: #
Where:
- a = acceleration (m/s²)
- v = final velocity (m/s)
- u = initial velocity (m/s)
- t = time (s)
Example: #
A car accelerates from 0 m/s to 20 m/s in 10 seconds.
Acceleration = (20 – 0) ÷ 10 = 2 m/s²
Momentum Equation: #
p = m × v
Where:
- p = momentum (kg⋅m/s)
- m = mass (kg)
- v = velocity (m/s)
Weight Equation: #
W = m × g
Where:
- W = weight (N)
- m = mass (kg)
- g = gravitational field strength (9.81 N/kg)
Density Equation: #
Where:
- ρ = density (kg/m³)
- m = mass (kg)
- V = volume (m³)
Volume (Rectangular Object): #
V = l × w × h
Where:
- V = volume (m³)
- l = length (m)
- w = width (m)
- h = height (m)
Pressure Equation: #
Where:
- P = pressure (N/m² or Pa)
- F = force (N)
- A = area (m²)
Work Done Equation: #
W = F × d
Where:
- W = work done (J)
- F = force (N)
- d = distance (m)
Kinetic Energy Equation: #
KE = ½ × m × v²
Where:
- KE = kinetic energy (J)
- m = mass (kg)
- v = velocity (m/s)
