Free AP Physics C lesson

Motion in E Fields

This AP Physics C: Electricity & Magnetism lesson is designed for AP Physics C self-study. It includes 2 video lessons, 4 practice questions, and an estimated completion time of 15 minutes.

Video lessons

  1. The Motion of Particles in a Uniform Electric Field

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  2. The Electric Field Due to 2 or More Charges

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Practice covered

  1. An electron is released from rest in a uniform electric field. Which statement correctly describes its subsequent motion?
  2. A proton (q = 1.6 times 10^-19 C, m = 1.67 times 10^-27 kg) is accelerated from rest through a potential difference of 1000 V. What is its final speed in m/s? (Round to the nearest thousand)
  3. Two positive charges +Q are located at (-a, 0) and (+a, 0). At which point is the electric field equal to zero?
  4. Four charges are arranged at the corners of a square: three positive charges +Q and one negative charge -Q at the bottom-right corner. At the center of the square, the direction of the net electric field is:
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