Home / G3 Science (Physics) / Magnetism and electromagnetism / Check what I know: Magnetism and Electromagnetism · G3 Science Physics Exit to Magnetism and electromagnetism Check what I know: Magnetism and Electromagnetism · G3 Science Physics Check what you know about Magnetism and Electromagnetism, practise what needs work, then check your progress and return for a later review using only the G3 Science motor-effect material.
Learning goals Work through the questions and use the feedback to plan revision. What this check covers: This check samples the required Magnetism and Electromagnetism capabilities. It routes focused practice and does not itself establish mastery. Your answers help choose what to revise next.Check what I know
Check what I know: Magnetism and Electromagnetism · G3 Science Physics A text-first Magnetism and Electromagnetism assessment with poles, field, current, force, materials and spatial directions stated explicitly.
About 8 minutes
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Answer 9 short questions. This starting check helps choose what to work on; it does not prove mastery.
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Which statement correctly describes the properties of magnets?
Like poles attract and unlike poles repel. Magnetic poles exist only while magnets touch. Magnets have north and south poles, like poles repel, unlike poles attract, and magnetic materials are attracted. Magnets have one pole and attract every material. What is induced magnetism?
Charge flows through every magnetic material. A material becomes magnetic only by touching a battery. A magnetic material becomes magnetised when placed near a strong magnet or within a current-carrying solenoid. A permanent magnet loses both poles. Which comparison correctly relates how readily iron and steel are magnetised and how well each keeps its magnetism?
Iron and steel retain magnetism equally. Steel is the better choice when a magnet has to be made quickly. Iron is easily magnetised and demagnetised for temporary magnets; steel is harder to magnetise but retains magnetism for permanent magnets. Steel magnetises easily and loses magnetism quickly. How is magnetic-field direction defined and measured?
It is always the direction of electron flow. It is the direction in which an unmagnetised iron filing is pulled. It is the direction the north-seeking pole of a compass points. It is the direction the compass south end points. Which description gives a physically correct bar-magnet field-line pattern?
Lines leave north, curve through space and enter south; they are closer where the field is stronger and never cross. Lines leave south, enter north and cross freely. Lines are equally spaced straight lines everywhere. Lines begin and end in empty space. Which statement correctly gives the field patterns for a straight current-carrying wire and a long current-carrying solenoid?
Both have radial straight lines. A wire has a bar-magnet field; a solenoid has circles only. A straight wire has concentric circles; a solenoid is strongest at the middle of its outside surface. A straight wire has concentric circles; a solenoid has a bar-magnet-like field with a strong, nearly uniform field inside, away from the ends. A wire carries current perpendicular to an external magnetic field and experiences a force. What happens if current is switched off?
The force reverses. The force remains because the field is present. The magnetic force disappears. The force doubles. In Fleming's left-hand rule, which digit gives force?
First finger. Second finger. Little finger. Thumb. A motor coil has a nonzero turning effect in an external magnetic field. Keep the coil area and orientation fixed; hold other quantities constant when changing one quantity. What happens when the external field reverses?
Only the coil resistance changes. The torque direction reverses. The torque direction stays unchanged. Current becomes zero. Practise
Practise: Magnetism and Electromagnetism · G3 Science Physics A text-first Magnetism and Electromagnetism assessment with poles, field, current, force, materials and spatial directions stated explicitly.
About 10 minutes
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Questions are selected when you start. Use the feedback to decide what to practise next; this does not prove mastery.
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Beyond the syllabus: optional enrichment that does not count towards your progress.
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Practise
Practise after feedback: Magnetism and Electromagnetism · G3 Science Physics A text-first Magnetism and Electromagnetism assessment with poles, field, current, force, materials and spatial directions stated explicitly.
About 10 minutes
Finish and submit Practise
Questions are selected when you start. Use the feedback to decide what to practise next; this does not prove mastery.
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Recent attempts History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
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Check my progress
Check my progress: Magnetism and Electromagnetism · G3 Science Physics A text-first Magnetism and Electromagnetism assessment with poles, field, current, force, materials and spatial directions stated explicitly.
About 10 minutes
Finish and submit Check my progress
Answer 13 questions. If accepted, this result can contribute to your course progress.
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Recent attempts History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
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Check again
Check again: Magnetism and Electromagnetism · G3 Science Physics A text-first Magnetism and Electromagnetism assessment with poles, field, current, force, materials and spatial directions stated explicitly.
About 10 minutes
Finish and submit Check again
Answer 13 questions. If accepted, this result can contribute to your course progress.
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Recent attempts History is stored only in this browser.
No completed attempts are saved yet.
Beyond the syllabus: optional enrichment that does not count towards your progress.
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Review
Review: Magnetism and Electromagnetism · G3 Science Physics A text-first Magnetism and Electromagnetism assessment with poles, field, current, force, materials and spatial directions stated explicitly.
About 10 minutes
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Answer 13 questions. A scheduled review can contribute to your course progress only when it is due and the result is accepted.
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Beyond the syllabus: optional enrichment that does not count towards your progress.
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Course and syllabus information Course SEC G3 Combined Science Physics component Edition SEC G3 Combined Science Physics component 2027