Amount of matter an object contains; measure of its inertia.
Gravitational force acting on a mass or object.
On Earth's surface (g ≈ 9.80 m/s²):
W = mg
Where: W = Weight, m = Mass, g = Acceleration due to gravity
Uses a spring that stretches when force is applied. Measures force with a graduated scale.
Electronic gauge for high-accuracy force measurement. Provides digital readout or graph.
Converting weight to mass:
m = W / g
Where: m = Mass, W = Weight, g = Acceleration due to gravity
Given: Mass of school bag = 8 kg
Earth's g = 9.8 m/s², Moon's g = 1.625 m/s²
W₁ = 8 kg × 9.8 m/s² = 78.4 N
W₂ = 8 kg × 1.625 m/s² = 13 N