Two magnets are placed so that their north poles face each other.
9.1 Explain the term magnetic field. (2)
9.2 Draw the magnetic field pattern between the two north poles of the magnets. (3)
9.3 The graph below shows how the magnetic force varies with distance between the magnets.
9.3.1 What is the mathematical relationship between magnetic force and distance between the two magnets? (1)
9.3.2 What is the magnitude of the magnetic force between the two magnets when they are 4 cm apart? (1)
9.3.3 How far apart must the magnets be to experience a force of 0,05 N? (1)
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