Projectile Motion Explained: Formulas, Range, Maximum Height and Examples
Projectile motion explained simply: horizontal and vertical components, time of flight, range, maximum height, the 45° rule and fully worked examples.
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Kinetic Energy (KE = ½mv²): Formula, Derivation and Examples
Kinetic energy explained simply: the KE = ½mv² formula, why speed matters so much, how it is derived, the work–energy theorem and worked examples.
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Ohm’s Law Explained: V = IR, Formula, Triangle and Examples
Ohm’s law explained simply: what V = IR means, the Ohm’s law triangle, power formulas, I–V graphs, when the law fails and worked circuit examples.
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Newton’s Second Law of Motion (F = ma) Explained With Examples
Newton’s second law explained simply: what F = ma means, how to find net force, units, free-body diagrams, lifts, slopes and pulleys, with worked examples.
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Speed of Light: How Fast Is Light and How Was It Measured?
The speed of light is exactly 299,792,458 m/s. Learn how it was measured, how fast light travels in water and glass, and why nothing can go faster.
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SUVAT Equations: The 5 Equations of Motion Explained With Examples
The 5 SUVAT equations explained simply: what each letter means, how to pick the right equation, where they come from and fully worked examples.
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Modern Physics Explained: Relativity, Quantum Theory and Nuclear Physics
Modern physics explained simply: special relativity, E = mc², photons, the photoelectric effect, wave–particle duality, the Bohr model and half-life.
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Electromagnetism Explained: Charge, Current, Circuits and Magnetic Fields
Electromagnetism explained simply: electric charge, Coulomb’s law, current, voltage, Ohm’s law, series and parallel circuits, magnetic fields and induction.
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Waves and Optics Explained: Wave Properties, Sound, Light and Snell’s Law
Waves and optics made simple: transverse vs longitudinal waves, v = fλ, sound, the EM spectrum, reflection, refraction, Snell’s law and interference.
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Thermodynamics Explained: Heat, Temperature, Gas Laws and the Laws of Thermodynamics
Thermodynamics explained simply: heat vs temperature, specific and latent heat, heat transfer, gas laws, PV = nRT, the laws of thermodynamics and heat engines.
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Kinematics Explained: Displacement, Velocity, Acceleration and SUVAT
Kinematics made simple: distance vs displacement, speed vs velocity, acceleration, SUVAT equations, motion graphs, free fall and projectiles with examples.
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Classical Mechanics Explained: Forces, Motion, Energy and Momentum
Classical mechanics explained simply: Newton’s laws, types of force, free-body diagrams, work, energy, power, momentum and circular motion with worked examples.
