EDEXCEL A LEVEL PHYSICS MODEL
ANSWERS AND MARK SCHEME
FALL SEMESTER 2026 QUESTIONS
AND VERIFIED ANSWERS
Equipotential Lines
Lines where electric potential is constant.
Time Constant
Time taken for charge to decrease to 37%.
Resistance in Circuits
Opposition to current flow in electrical components.
Capacitance in Circuits
Ability to store charge per unit voltage.
Angular Velocity
Rate of rotation around a central point
Number Density of Electrons
Concentration of free electrons in a material.
,Magnetic Flux
Product of magnetic field and area perpendicular to it.
Electromotive Force (EMF)
Voltage induced by changing magnetic flux.
Current Induction
Current generated due to induced EMF.
Alternating Current
Current that reverses direction periodically.
Flux Linkage
Product of magnetic flux and number of turns.
Lenz's Law
Induced current opposes the change causing it.
, Transformer Operation
Uses alternating current to induce voltage in coils.
Primary Coil
Coil connected to the input voltage source.
Secondary Coil
Coil where induced voltage is measured.
Rutherford's Experiment
Demonstrated atom is mostly empty space.
Momentum Conservation
Momentum should be conserved in isolated systems.
Energy Conservation
Total energy remains constant in closed systems.
Linear Accelerator
Accelerates charged particles in a straight line.
ANSWERS AND MARK SCHEME
FALL SEMESTER 2026 QUESTIONS
AND VERIFIED ANSWERS
Equipotential Lines
Lines where electric potential is constant.
Time Constant
Time taken for charge to decrease to 37%.
Resistance in Circuits
Opposition to current flow in electrical components.
Capacitance in Circuits
Ability to store charge per unit voltage.
Angular Velocity
Rate of rotation around a central point
Number Density of Electrons
Concentration of free electrons in a material.
,Magnetic Flux
Product of magnetic field and area perpendicular to it.
Electromotive Force (EMF)
Voltage induced by changing magnetic flux.
Current Induction
Current generated due to induced EMF.
Alternating Current
Current that reverses direction periodically.
Flux Linkage
Product of magnetic flux and number of turns.
Lenz's Law
Induced current opposes the change causing it.
, Transformer Operation
Uses alternating current to induce voltage in coils.
Primary Coil
Coil connected to the input voltage source.
Secondary Coil
Coil where induced voltage is measured.
Rutherford's Experiment
Demonstrated atom is mostly empty space.
Momentum Conservation
Momentum should be conserved in isolated systems.
Energy Conservation
Total energy remains constant in closed systems.
Linear Accelerator
Accelerates charged particles in a straight line.
