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Physics Fundamentals Blog

101 free articles covering every core topic in A-Level and introductory university physics. Clear explanations, real-world examples, and the conceptual depth you won't find in a typical textbook.

Physics Fundamentals Blog

Work-Energy Theorem: W_net = ΔKE — Derivation & Worked Examples

Wave Superposition: Adding Waves, Phase & Interference Patterns

Thermal Expansion: Formula ΔL = αL₀ΔT, Types & Worked Examples

Vectors and Scalars: Definitions, Examples & Vector Addition

Stress, Strain & Young's Modulus: E = sigma/epsilon Formula & Examples

Thermal Energy & Internal Energy: Heat, Temperature & Q = mcDelta-T

Simple Pendulum: Period Formula T = 2π√(L/g), Derivation & Examples

Terminal Velocity: Why Objects Stop Accelerating & Calculations

Snell's Law: n₁sinθ₁ = n₂sinθ₂, Derivation & Total Internal Reflection

Resistors in Series and Parallel: Formulas, Rules & Worked Examples

Standing Waves & Resonance: Nodes, Antinodes & Harmonics Explained

Projectile Motion Range: R = v2sin2theta/g & Optimum Angle 45deg

Quantum Numbers: n, l, m_l, m_s and Electron Configuration

Polarisation of Light: Malus's Law I = I₀cos²θ & Applications

Pressure in Fluids: P = ρgh, Pascal's Law & Hydraulics Explained

Power in Electrical Circuits: P = IV = I2R = V2/R Explained

Potential Energy: Gravitational, Elastic & Electric Forms Explained

Nuclear Decay Equations: Alpha, Beta & Gamma Decay Explained

Net Force: Definition, Formula & Newton's Second Law Applied

Photoelectric Effect: hf = work-function + KE_max Calculations

Nuclear Binding Energy: Mass Defect, E = delta-m-c2 & Stability

Resistance & Temperature: How Resistance Changes with Heat

Elastic & Inelastic Collisions: Conservation Laws & Examples

Mechanical Energy: KE + PE, Conservation & Energy Transformations

Never miss an article

Physics Fundamentals Blog

Work-Energy Theorem: W_net = ΔKE — Derivation & Worked Examples

Wave Superposition: Adding Waves, Phase & Interference Patterns

Thermal Expansion: Formula ΔL = αL₀ΔT, Types & Worked Examples

Vectors and Scalars: Definitions, Examples & Vector Addition

Stress, Strain & Young's Modulus: E = sigma/epsilon Formula & Examples

Thermal Energy & Internal Energy: Heat, Temperature & Q = mcDelta-T

Simple Pendulum: Period Formula T = 2π√(L/g), Derivation & Examples

Terminal Velocity: Why Objects Stop Accelerating & Calculations

Snell's Law: n₁sinθ₁ = n₂sinθ₂, Derivation & Total Internal Reflection

Resistors in Series and Parallel: Formulas, Rules & Worked Examples

Standing Waves & Resonance: Nodes, Antinodes & Harmonics Explained

Projectile Motion Range: R = v2sin2theta/g & Optimum Angle 45deg

Quantum Numbers: n, l, m_l, m_s and Electron Configuration

Polarisation of Light: Malus's Law I = I₀cos²θ & Applications

Pressure in Fluids: P = ρgh, Pascal's Law & Hydraulics Explained

Power in Electrical Circuits: P = IV = I2R = V2/R Explained

Potential Energy: Gravitational, Elastic & Electric Forms Explained

Nuclear Decay Equations: Alpha, Beta & Gamma Decay Explained

Net Force: Definition, Formula & Newton's Second Law Applied

Photoelectric Effect: hf = work-function + KE_max Calculations

Nuclear Binding Energy: Mass Defect, E = delta-m-c2 & Stability

Resistance & Temperature: How Resistance Changes with Heat

Elastic & Inelastic Collisions: Conservation Laws & Examples

Mechanical Energy: KE + PE, Conservation & Energy Transformations

Never miss an article