Question detail
Select the statement that would earn credit in an AQA GCSE Physics answer. Context: bench-top compass mapping compass-response. Learning objective: (Physics only) (HT only) Explain that the original change may be the movement of the conductor or the change in magnetic field.. Which answer is most accurate for Induced potential (HT only)? Distinct revision anchor: fluxcue557a coilcue557b fieldcue557c polecue557d gridcue557e motorcue557f generatorcue557g transformercue557h compasscue557i currentcue557j voltagecue557k forcecue557l.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Induced potential, transformers and the National Grid (physics only) (HT only)
Question
- A. Induced potential (HT only): bench-top compass mapping compass-response shows (Physics only) (HT only) Explain that the original change may be the movement of the conductor or the change in magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux.
- B. It treats a permanent magnet as if it only works when current flows. (boundary error).
- C. It confuses the magnetic field with an electric field. (application error).
- D. It describes energy transfer but misses the force or field interaction. (measurement error).
Answer
Induced potential (HT only): bench-top compass mapping compass-response shows (Physics only) (HT only) Explain that the original change may be the movement of the conductor or the change in magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Induced potential (HT only): bench-top compass mapping compass-response shows (Physics only) (HT only) Explain that the original change may be the movement of the conductor or the change in magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Induced potential (HT only), uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The bench-top compass mapping compass-response detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue557a coilcue557b fieldcue557c polecue557d gridcue557e motorcue557f generatorcue557g transformercue557h compasscue557i currentcue557j voltagecue557k forcecue557l: in the motor effect, the force is perpendicular to the current and magnetic field; in a generator, relative motion or a changing magnetic field induces a potential difference or induced current; outside a magnet, magnetic field lines go from north to south; AC alternating current changes direction, while DC direct current flows in one direction and needs a commutator in a DC generator context.
Common mistake
National Grid transformer reasoning: avoid magnetic field...
Treating magnetic field direction and force direction as interchangeable when answering about National Grid transformer reasoning.
Instead, identify the exact Unit 4.7 idea in Induced potential (HT only), then explain how it links to a dynamo producing a DC output trace and the objective to explain that the original change may be the movement of the conductor or the change in magnetic field.
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