Newton’s Laws of Motion (VCE SSCE Physics): Flashcards

Object maintains motion unless unbalanced net force acts

Tendency of objects to resist changes in their motion

$F_{\text{net}} = ma$

Forces occur in equal and opposite pairs on different objects

Perpendicular contact force exerted by a surface on an object

$F_g = mg$

Mass constant everywhere; weight varies with gravitational field

$a = g \sin \theta$

$N = m(a_{\text{vertical}} + g)$

Extends collision time, reducing average force on occupants