Unit 8J: Magnets and electromagnets Section 6: b. What is a magnetic field?
Objectives
Children should learn:
what to take into account when deciding which equipment to use
Activities
Outcomes
Children:
Ask different groups to devise and test various suspension techniques,
eg on a thread, by floating, for allowing a freely suspended magnet to line up north-south. Discuss how well it works and when it could be used.
identify that for magnets to point north to south, the suspension mechanism must be almost completely unaffected by other forces,
eg friction, moving air
use appropriate equipment
Points to note
It is not necessary to demonstrate angle of inclination of the Earth's magnetic field.
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