Question detail

Which conclusion keeps the magnetism concept boundary clear? Context: moving-wire motor effect cause. Learning objective: Describe an induced magnet as a material that becomes a magnet when placed in a magnetic field.. Which answer is most accurate for Poles of a magnet? Distinct revision anchor: fluxcue145a coilcue145b fieldcue145c polecue145d gridcue145e motorcue145f generatorcue145g transformercue145h compasscue145i currentcue145j voltagecue145k forcecue145l.

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: moving-wire motor effect cause shows Describe an induced magnet as a material that becomes a magnet when placed in a magnetic field. 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. (exam-command error).
  3. C. It confuses the magnetic field with an electric field. (direction error).
  4. D. It describes energy transfer but misses the force or field interaction. (cause error).

Answer

Poles of a magnet: moving-wire motor effect cause shows Describe an induced magnet as a material that becomes a magnet when placed in a magnetic field. because magnetic effects depend on field direction, current or changing magnetic flux.

Explanation

Poles of a magnet: moving-wire motor effect cause shows Describe an induced magnet as a material that becomes a magnet when placed in a magnetic field. 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 moving-wire motor effect cause detail makes the option distinct from nearby objectives while still testing the same AQA GCSE Physics learning objective. V10 boundary check fluxcue145a coilcue145b fieldcue145c polecue145d gridcue145e motorcue145f generatorcue145g transformercue145h compasscue145i currentcue145j voltagecue145k forcecue145l: 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 moving-coil microphone investigation and the objective to describe an induced magnet as a material that becomes a magnet when placed in a magnetic field.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move

Related practice questions

Question 1 of 5

Choose an answer, get feedback, then move sideways through the set.

0 of 4 attempted