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11.2 Uses, dangers and electric fields

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Question 3

A moving insulating conveyor belt has a positive charge. A small metal flap is mounted on an insulating spindle near the belt.

The flap is initially neutral. It is not earthed and does not touch the belt. When the flap is 6.0 cm from the belt, it turns through 12° towards the belt. A larger turning angle indicates a larger electrostatic force.

a.

Explain why the initially neutral metal flap turns towards the positively charged belt.

[4]
b.

The charge on the belt is unchanged. The flap is moved so that it is 3.0 cm from the belt.

Explain how its turning angle will compare with 12°.

[2]
Markscheme

11.2 Uses, dangers and electric fields Questions

  1. GCSE
  2. /Physics
  3. /11.2 Uses, dangers and electric fields

80 exam-style questions on Edexcel GCSE Physics 11.2 Uses, dangers and electric fields, covering 11.2.1 Uses of electrostatic charge, 11.2.2 Dangers of sparking, 11.2.3 Electric fields, and 11.2.4 Electric fields and static electricity. Each one has a worked solution and a mark scheme showing where the marks go.

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