Section: Module 3: Magnetism | Eswatini Grade 9 Science | NJCTL

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Module 2: Waves
Module 4: Electricity

Module 3: Magnetism

  • Module 3: Magnetism


    This module investigates magnetism. 


    Watch the videos and complete the check your understanding questions before moving on to the module assignments. Practice problems are not graded but should be completed to facilitate your learning. 



    1. State the simple properties of a magnet.

    2. Describe the effect of the poles of bar magnets on one another.

    3. Use iron filings to determine and draw the pattern of field lines around a bar magnet.

    4. Draw field lines around two bar magnets arranged end to end. (to show repulsion and attraction).

    5. Describe methods of: magnetisation (induction and stroking) and demagnetisation (hammering and heating).

    6. Describe how a simple electromagnet can be constructed.

    7. Describe the factors affecting the strength of an electromagnet: number of turns in coil, amount of current.

    There are no required readings. 


    • Module 2 Topics

    • Module 2 Module Review

    • Magnetism Discussion Board Forum

      Please use this space to ask any questions about the module to the instructor and your peers.  You can start a new discussion thread by pressing "add a new discussion topic."

    • Magnetism - Lab PDF File
Module 2: Waves
Module 4: Electricity