Classical Mechanics
Newton's Second Law: F = ma Derived and Explained
Why mass resists acceleration. Vector form, units, every nuance unpacked with 8 worked problems.
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Classical Mechanics
Newton's Three Laws of Motion: The Complete Guide
The foundation of classical mechanics — inertia, F = ma, and action-reaction pairs explained from physical intuition to mathematical precision. Includes 12 worked examples and common misconceptions corrected.
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Classical Mechanics
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Classical Mechanics
Projectile Motion: Range, Height, and Time of Flight
Full derivations, 45° optimum proof, parabola shape explained. Common exam mistakes corrected.
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Classical Mechanics
Conservation of Momentum: Behind Every Collision
Elastic vs inelastic, impulse, centre of mass. Why momentum is fundamentally conserved and how to use it.
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Classical Mechanics
Newton's Law of Universal Gravitation Explained
F = GMm/r² derived from Kepler's laws. Gravitational fields, escape velocity, satellite orbits.
Thermodynamics
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Thermodynamics
What Is Energy? A Complete Physics Explanation
Kinetic, potential, thermal, chemical. Conservation of energy — the most important principle in all physics.
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Thermodynamics
First Law of Thermodynamics: ΔU = Q − W
Internal energy, heat, and work unpacked completely. Worked examples from heat engines to gas compression.
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Thermodynamics
Kinetic Theory of Gases: Pressure, Temperature, Motion
How molecular motion explains macroscopic gas properties. Derivation of PV = nRT from first principles.
Waves & Oscillations
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Waves & Optics
Transverse Waves: The Definitive Guide
Wavelength, amplitude, frequency, polarization — with labeled diagrams and real examples from light to guitar strings. 6,800 words.
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Waves & Optics
v = fλ: The Wave Equation Explained From First Principles
Why every wave obeys v = fλ. Sound, light, water waves — the universal wave relationship derived and applied.