Physics Class 12

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Explore interactive physics mechanics concepts with collapsible theory, live calculations, tables, diagrams, and practice material.

Kinematics describes motion without considering its causes.

  • Displacement (s)
  • Velocity (v)
  • Acceleration (a)
  • Equations of motion: s = ut + 1/2 at², v = u + at, v² = u² + 2as



Projectile motion formulas:

  • Time of Flight: T = 2u sinθ / g
  • Range: R = u² sin2θ / g
  • Max Height: H = u² sin²θ / 2g


F = ma, action-reaction, inertia explained with examples.



LawDescriptionExample
FirstInertiaBook remains at rest until pushed
SecondF=maPushing cart
ThirdAction=ReactionRocket motion

W = Fd cosθ, KE = 1/2 mv², PE = mgh, Power = W/t



Momentum p = mv, Impulse J = FΔt



Torque τ = Iα, Rotational KE = 1/2 Iω²