Question detail
Which conclusion keeps the magnetism concept boundary clear? Context: classroom plotting compass direction. Learning objective: Describe how two magnets exert forces on each other when brought close together.. Which answer is most accurate for Poles of a magnet? Distinct revision anchor: fluxcue109a coilcue109b fieldcue109c polecue109d gridcue109e motorcue109f generatorcue109g transformercue109h compasscue109i currentcue109j voltagecue109k forcecue109l.
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
- A. Poles of a magnet: classroom plotting compass direction shows Describe how two magnets exert forces on each other when brought close together. 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. (energy-transfer error).
- C. It confuses the magnetic field with an electric field. (field-shape error).
- D. It describes energy transfer but misses the force or field interaction. (current-change error).
Answer
Poles of a magnet: classroom plotting compass direction shows Describe how two magnets exert forces on each other when brought close together. because magnetic effects depend on field direction, current or changing magnetic flux.
Explanation
Poles of a magnet: classroom plotting compass direction shows Describe how two magnets exert forces on each other when brought close together. 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 classroom plotting compass direction detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue109a coilcue109b fieldcue109c polecue109d gridcue109e motorcue109f generatorcue109g transformercue109h compasscue109i currentcue109j voltagecue109k forcecue109l: 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 steel core electromagnet demonstration and the objective to describe how two magnets exert forces on each other when brought close together.
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