Page 107 - Big Ideas Year 10 sciPAD 2025

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SCIPAD - BIG IDEAS - BOOK 2
CIRCUITS AND MAGNETS
Magnetic Fields
A magnetic field is the space around a magnet in which a magnetic force can be detected.
Magnetic field lines are invisible lines that indicate the strength and direction of a magnetic field.
Observing Magnetic Fields
Aim: To observe and draw a magnetic field around a bar magnet.
Method: 1. Place a bar magnet underneath this page, positioned so that it lies under the
diagram of the bar magnet shown below.
2. Sprinkle iron filings onto this page, over the bar magnet diagram.
3. Observe the field lines. Note how they are more concentrated around the poles of
the magnet.
4. Carefully pour the iron filings back into the container they came from and remove
the magnet.
5. Complete the diagram of the bar magnet by drawing magnetic field lines around
it. Magnetic fields travel from the north pole of a magnet to the south pole. You
should indicate this by adding arrows to your magnetic field lines. Lines should also
be drawn closer together around the poles as this is where the field is stronger.
N S
Bar magnet goes under here
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