Physics
Quantum sketch
Photons, matter waves, uncertainty.
Basics
Light as packets too
Photoelectric effect: frequency ν must clear a threshold; intensity alone will not. E=hν. Atoms have discrete levels — spectral lines.
Matter waves
Electrons interfere like waves (de Broglie). Allowed “orbits” fit an integer number of wavelengths. Measurement can disturb the state. Probability density is |ψ|².
Formulas
Photon energy
h is Planck’s constant. Shorter λ packs more energy.
Symbols
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νfrequency
de Broglie
Larger momentum p → shorter λ, more classical-looking.
Symbols
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pmomentum
Uncertainty (sketch)
Position and momentum cannot both be arbitrarily sharp.
Symbols
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ℏh / 2π
In this field
Mechanics
Kinematics, Newton, momentum, circular motion.
Energy and work
Work, kinetic and potential energy, power, conservation.
Waves and thermodynamics
Oscillation, waves, sound, heat, entropy.
Electromagnetism and modern physics
Charge, fields, basic circuits, photons, mass–energy.
Fluids and optics
Pressure, buoyancy, Bernoulli, lenses, interference.
Relativity and nuclear sketch
Time dilation, length contraction, decay, cross-section.
Gravity and orbits
Newton's gravity, Kepler, surface g, and circular orbits.
Rotation
Angular velocity, moment of inertia, torque, angular momentum, rolling.
SHM and resonance
Springs and pendulums, energy swap, damping, driving, and resonance.
Electrostatics
Coulomb force, electric field, potential, and a Gauss-law sketch.
Magnetostatics
Lorentz force, Biot–Savart, Ampère, and the solenoid.