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Mechanics · Physics

Master motion, forces, energy, and rotation.

Mechanics is the backbone of Physics. Build intuition through guided nano-lessons in kinematics, dynamics, energy, momentum, and rotational motion.

Mechanics topics

Explore the chapters in this track

Move sequentially or jump into any area that you want to strengthen.

Chapter A
Kinematics
Understand motion in 1D, 2D, and circular paths.
  • Describing motion in one dimension
  • Constant acceleration equations
  • Two-dimensional motion
  • Projectile motion
  • Relative motion
  • Uniform circular motion
Start Kinematics Build intuition for how things move.
Chapter B
Forces & Newton’s Laws
Explore the laws governing how forces affect motion.
  • Newton’s First Law
  • Newton’s Second Law (F = ma)
  • Newton’s Third Law
  • Free-body diagrams
  • Friction & drag forces
  • Dynamics of circular motion
  • Systems of particles (Atwood, pulleys)
Start Dynamics Make forces intuitive.
Chapter C
Work, Energy & Power
See how energy connects motion, forces, and systems.
  • Work & the Work–Energy Theorem
  • Kinetic & potential energy
  • Conservative vs non-conservative forces
  • Conservation of mechanical energy
  • Power in mechanical systems
Start Energy Understand why energy rules physics.
Chapter D
Momentum & Collisions
Momentum reveals how motion transfers between objects.
  • Linear momentum & impulse
  • Momentum conservation
  • Elastic & inelastic collisions
  • Center of mass
  • Rocket motion
Start Momentum Essential for impacts and systems.
Chapter E
Rotation & Angular Dynamics
Rotation explains wheels, planets, and spinning systems.
  • Rotational kinematics
  • Torque & rotational dynamics
  • Rotational inertia
  • Rotational kinetic energy
  • Rolling motion
  • Angular momentum
  • Gyroscopic motion
Start Rotation Powerful tools for engineering systems.
Practice
Practice & Exercises
Build skills with progressively challenging problems.
  • Warm-up conceptual checks
  • Skill-building numeric problems
  • Multi-step challenge problems
  • Exam-style mixed sets
  • Real-world applied mechanics problems
Open practice sets From simple to advanced applications.