AQA GCSE Combined Science: Synergy · 8465
Specification 4.6.3.3 · Paper 3, Paper 4
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GCSE Combined Science · key term
Magnetism that changes over time, rather than remaining fixed.
Used by AQA
Specification 4.6.3.3 · Paper 3, Paper 4
Give both pole movement and field reversals as evidence of dynamic magnetism. Reversals occur at irregular intervals; the last was about 800,000 years ago.
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