AQA A-LEVEL PHYSICS PAPER 2 TEST BANK
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VERIFIED SOLUTIONS 2026
◉Motor effect . Answer: Effect in which a current in a magnetic field
experiences a force.
◉Fleming's left hand rule . Answer: Way of working out the directions
involved in the motor effect.
◉Magnetic flux density . Answer: Force per unit length per unit current
on a conductor perpendicular to the field lines. Often referred to as the
strength of the magnetic field.
◉Couple . Answer: Pair of forces in opposite directions that try to turn
an object. Acts on the coil of a motor.
◉Thermionic . Answer: Property of a material that means that when it
gets hot, it emits electrons.
◉Cyclotron . Answer: Spiral particle accelerator.
,◉Frequency . Answer: Number of rotations per second, given by 1/T.
◉Mass spectrometer . Answer: Device that separates a constituents of a
substance by their masses.
◉Ion . Answer: Charged atom.
◉Velocity selector . Answer: Component that uses an opposing electric
and magnetic field to ensure all particles going straight through have the
same speed and direction.
◉Vacuum . Answer: Space where (nearly) all particles have been
removed (evacuated).
◉Electromotive force . Answer: Force on electrons that tries to push
them along. Known as the emf.
◉Electromagnetic induction . Answer: Phenomenon in which a
changing magnetic field, relative to a wire, will produce an emf.
◉Fleming's right hand rule . Answer: Also known as the dynamo rule.
Works out directions involved in electromagnetic induction.
, ◉Solenoid . Answer: Electrical coil.
◉Lenz's law . Answer: "The direction of the induced current is always
such as to oppose the change that caused the current".
◉Magnetic flux . Answer: Product of the magnetic flux density and the
area.
◉Magnetic flux linkage . Answer: Product of the magnetic flux and the
number of turns of the coil.
◉Faraday's law . Answer: "The induced emf in a circuit is equal to the
rate of change of flux linkage through the circuit".
◉Alternator . Answer: Generator of AC.
◉Back emf . Answer: An emf generated in a motor that works against
the current that is powering the motor.
◉Step-up . Answer: Transformer that raises the voltage and lowers the
current (answer is hyphenated!)
◉Step-down . Answer: Transformer that lowers the voltage and raises
the current (answer is hyphenated!)
COMPREHENSIVE EXAM PREP WITH 100%
VERIFIED SOLUTIONS 2026
◉Motor effect . Answer: Effect in which a current in a magnetic field
experiences a force.
◉Fleming's left hand rule . Answer: Way of working out the directions
involved in the motor effect.
◉Magnetic flux density . Answer: Force per unit length per unit current
on a conductor perpendicular to the field lines. Often referred to as the
strength of the magnetic field.
◉Couple . Answer: Pair of forces in opposite directions that try to turn
an object. Acts on the coil of a motor.
◉Thermionic . Answer: Property of a material that means that when it
gets hot, it emits electrons.
◉Cyclotron . Answer: Spiral particle accelerator.
,◉Frequency . Answer: Number of rotations per second, given by 1/T.
◉Mass spectrometer . Answer: Device that separates a constituents of a
substance by their masses.
◉Ion . Answer: Charged atom.
◉Velocity selector . Answer: Component that uses an opposing electric
and magnetic field to ensure all particles going straight through have the
same speed and direction.
◉Vacuum . Answer: Space where (nearly) all particles have been
removed (evacuated).
◉Electromotive force . Answer: Force on electrons that tries to push
them along. Known as the emf.
◉Electromagnetic induction . Answer: Phenomenon in which a
changing magnetic field, relative to a wire, will produce an emf.
◉Fleming's right hand rule . Answer: Also known as the dynamo rule.
Works out directions involved in electromagnetic induction.
, ◉Solenoid . Answer: Electrical coil.
◉Lenz's law . Answer: "The direction of the induced current is always
such as to oppose the change that caused the current".
◉Magnetic flux . Answer: Product of the magnetic flux density and the
area.
◉Magnetic flux linkage . Answer: Product of the magnetic flux and the
number of turns of the coil.
◉Faraday's law . Answer: "The induced emf in a circuit is equal to the
rate of change of flux linkage through the circuit".
◉Alternator . Answer: Generator of AC.
◉Back emf . Answer: An emf generated in a motor that works against
the current that is powering the motor.
◉Step-up . Answer: Transformer that raises the voltage and lowers the
current (answer is hyphenated!)
◉Step-down . Answer: Transformer that lowers the voltage and raises
the current (answer is hyphenated!)
