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7.1 Permanent and induced magnetism, magnetic forces and fields

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Question 20

Four tests, P, Q, R and S, are carried out using pairs of low-friction trolleys. Every trolley contains either a permanent magnet or an unmagnetised iron block. The trolleys begin at rest with a gap between them. Unless stated otherwise, both trolleys are free to move. Any horizontal movement is caused by the magnetic interaction between the inserts.

TestObservation
PBoth trolleys move towards each other.
QBoth trolleys move away from each other.
RNeither trolley moves.
STrolley 1 is held fixed and trolley 2 moves towards it.

Which test shows that both trolleys contain permanent magnets?

[1]
A

Test P

B

Test Q

C

Test R

D

Test S

Markscheme

7.1 Permanent and induced magnetism, magnetic forces and fields Questions

  1. GCSE
  2. /Physics
  3. /7.1 Permanent and induced magnetism, magnetic forces and fields

80 exam-style questions on AQA GCSE Physics 7.1 Permanent and induced magnetism, magnetic forces and fields, covering 7.1.1 Poles of a magnet and 7.1.2 Magnetic fields. Each one has a worked solution and a mark scheme showing where the marks go.

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