Question detail

Select the statement that would earn credit in an AQA GCSE Physics answer. Context: bench-top compass mapping cause. Learning objective: State that two unlike magnetic poles attract each other.. Which answer is most accurate for Poles of a magnet? Distinct revision anchor: fluxcue125a coilcue125b fieldcue125c polecue125d gridcue125e motorcue125f generatorcue125g transformercue125h compasscue125i currentcue125j voltagecue125k forcecue125l.

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Permanent and induced magnetism, magnetic forces and fields

Question

  1. A. Poles of a magnet: bench-top compass mapping cause shows State that two unlike magnetic poles attract each other. because magnetic effects depend on field direction, current or changing magnetic flux.
  2. B. It treats a permanent magnet as if it only works when current flows. (boundary error).
  3. C. It confuses the magnetic field with an electric field. (application error).
  4. D. It describes energy transfer but misses the force or field interaction. (measurement error).

Answer

Poles of a magnet: bench-top compass mapping cause shows State that two unlike magnetic poles attract each other. because magnetic effects depend on field direction, current or changing magnetic flux.

Explanation

Poles of a magnet: bench-top compass mapping cause shows State that two unlike magnetic poles attract each other. because magnetic effects depend on field direction, current or changing magnetic flux. It is correct because it anchors the response to Poles of a magnet, uses the relevant magnetic field, coil, current or induction evidence, and avoids mixing motor, generator and transformer ideas. The bench-top compass mapping cause detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue125a coilcue125b fieldcue125c polecue125d gridcue125e motorcue125f generatorcue125g transformercue125h compasscue125i currentcue125j voltagecue125k forcecue125l: 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

generator-effect induction: avoid permanent and induced magnets

Treating permanent and induced magnets as interchangeable when answering about generator-effect induction.

Instead, identify the exact Unit 4.7 idea in Poles of a magnet, then explain how it links to a loudspeaker coil moving in a magnetic field and the objective to state that two unlike magnetic poles attract each other.

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