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Electric potential and energy →
Read a voltage map, track signed work and choose between fields and energy.
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Electrical instruments: meter ranges and bridge balances →
Design a shunt or multiplier, quantify loading and infer an unknown resistance from a reproducible null.
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Exponential change, logarithms and controlled approximations →
Recognise fractional change, solve for time and decide when a small-angle model is accurate enough.
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Forces that turn a moving object →
Derive inward acceleration, resolve real forces and test the limits of circular motion.
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From changing electric fields to electromagnetic waves →
Resolve the capacitor-gap puzzle, derive the wave speed and follow energy through the fields.
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From interactions to equations →
Learn to choose a body, draw its forces, and explain a change of motion before calculating it.
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From LC energy exchange to RLC resonance →
Connect charge, current, phase and loss without confusing three different frequencies.
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Galvanometer half-deflection experiment →
Use a controlled current split to measure coil resistance and current per scale division.
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Gases: state variables, molecular speeds and collisions →
Connect pressure and temperature to particle motion, then distinguish collision distance from collision time.
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Gratings, spectra and resolving detail →
Separate where a peak appears from how narrowly it can distinguish two signals.
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Gravitational fields, orbits and escape →
Distinguish vector fields from potential energy and apply the right model inside and outside a sphere.
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Heat balances, conduction and cooling →
Track energy through mixing and phase changes, then distinguish steady heat flow from a changing temperature.
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Heat engines, refrigerators and entropy →
Use energy and entropy as separate checks on a complete thermal cycle.
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Heat, work and thermodynamic paths →
Use energy conservation with an explicit system and sign convention, then audit every leg of a gas cycle.
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Hydrogen levels, spectra and ionization →
Read negative bound energies correctly and distinguish a level gap, a threshold and a cascade.
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Images at refracting surfaces and thin lenses →
Use one sign convention, construct the rays and carry intermediate images through the system.
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Impulse, momentum and collisions →
Choose the system and interval, then connect momentum exchange to centre-of-mass motion and impact outcomes.
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Induction, moving conductors and magnetic energy →
Follow the changing flux, establish the sign, and close the energy account.
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Interference, diffraction and the structure of a fringe pattern →
Turn path differences into phase, add fields and keep slit width distinct from slit separation.
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Interference: phase, brightness and contrast →
Predict what a detector reads by connecting path, phase and field addition.