Free AP Physics C lesson

Potential Energy & Work

This AP Physics C: Electricity & Magnetism lesson is designed for AP Physics C self-study. It includes 4 video lessons, 7 practice questions, and an estimated completion time of 20 minutes.

Video lessons

  1. Electric Potential Energy

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  2. Electric Potential Energy and Electric Potential

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  3. Electric Potential and Electric Potential Energy Due to Point Charges

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  4. Electric Potential Due to Multiple Point Charges

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Practice covered

  1. The electric potential energy U of a charge q in an electric field is analogous to gravitational potential energy. Which statement is correct?
  2. Two protons are initially separated by 2.0 mm. Calculate the electric potential energy (in 10^-14 J) of this system. (Use k = 9.0 times 10^9 N·m²/C², e = 1.6 times 10^-19 C)
  3. Electric potential V (measured in volts) differs from electric potential energy U (measured in joules) in that:
  4. The electric potential V at distance r from a point charge Q is given by:
  5. A charge of +3.0 μC is placed at the origin. Calculate the electric potential (in volts) at a point 0.50 m away. (Use k = 9.0 times 10^9 N·m²/C²)
  6. Three charges are arranged at the corners of an equilateral triangle. To find the total electric potential at the center, you must:
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