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Physics (AS & A Level) · Oct / Nov 2019 · Paper 13 · Question 32

9702Uniform electric fields

A uniform electric field is represented by five horizontal field lines. P and Q are two points in the field. The field causes a positively charged particle in a vacuum to move from P to Q. Which statement must be correct?

  1. AThe acceleration of the particle between P and Q is increasing.
  2. BThe kinetic energy of the particle at P is the same as the kinetic energy of the particle at Q.
  3. CThe force on the particle at Q is greater than the force on the particle at P.
  4. DWork is done on the particle as it moves from P to Q.

As printed in the paper

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Correct answer: D. Work is done on the particle as it moves from P to Q.

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