Question detail

Which response uses the correct technical wording for this situation? Context: model railway motor direction. Learning objective: State that the poles of a magnet are the places where magnetic forces are strongest.. Which answer is most accurate for Poles of a magnet? Distinct revision anchor: fluxcue104a coilcue104b fieldcue104c polecue104d gridcue104e motorcue104f generatorcue104g transformercue104h compasscue104i currentcue104j voltagecue104k forcecue104l.

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: model railway motor direction shows State that the poles of a magnet are the places where magnetic forces are strongest. because magnetic effects depend on field direction, current or changing magnetic flux.
  2. B. It says field lines travel from south to north outside the magnet. (diagnosis error).
  3. C. It makes AC and DC equivalent. (prediction error).
  4. D. It ignores relative motion or changing magnetic flux. (comparison error).

Answer

Poles of a magnet: model railway motor direction shows State that the poles of a magnet are the places where magnetic forces are strongest. because magnetic effects depend on field direction, current or changing magnetic flux.

Explanation

Poles of a magnet: model railway motor direction shows State that the poles of a magnet are the places where magnetic forces are strongest. 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 model railway motor direction detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue104a coilcue104b fieldcue104c polecue104d gridcue104e motorcue104f generatorcue104g transformercue104h compasscue104i currentcue104j voltagecue104k forcecue104l: 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 bar magnet and plotting compass practical and the objective to state that the poles of a magnet are the places where magnetic forces are strongest.

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