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AP Physics C: E&M Electric Charges and Fields — practice questions

Explore 30 free Electric Charges and Fields questions in AP Physics C: E&M Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Electric Charges and Fields questions and exercises with answers

Showing questions 1–30 of 30.

A physicist records a charge measurement in SI units, named after a French physicist. That unit is the:Read the answer and worked solution →Experiments established that charge comes in how many types?Read the answer and worked solution →If a charge vanished in one place and appeared far away, one law would still hold. That law is the conservation of:Read the answer and worked solution →Charge cannot take just any value, but comes in whole multiples of a basic amount. Charge is therefore said to be:Read the answer and worked solution →Coulomb's law says the force between two charges falls off with the square of the distance. That relationship is called:Read the answer and worked solution →That same force grows in proportion to the net charge on each object. That dependence is:Read the answer and worked solution →Forces from several charges on one object can simply be added as vectors. That rule is the principle of:Read the answer and worked solution →Materials that do not let electric charge move away through them are called:Read the answer and worked solution →A charged rod is brought near a metal sphere without touching, and the sphere's charges rearrange. That process is charging by:Read the answer and worked solution →In an insulator the same approach shifts the electron distribution slightly. That effect is called inducing:Read the answer and worked solution →Once that shift happens, unlike charges sit closer than like charges, so the object feels a net:Read the answer and worked solution →Rather than describing the force on one particular test charge, physicists define a quantity independent of it. That quantity is the electric:Read the answer and worked solution →Drawings that let us picture how charge alters the surrounding space are electric field:Read the answer and worked solution →A student draws two of those lines crossing. That drawing must be wrong, because field lines never:Read the answer and worked solution →Where those lines are packed more densely, the field is:Read the answer and worked solution →Two equal and opposite charges separated by a small distance form a dipole, characterised by its dipole:Read the answer and worked solution →Placed in a uniform field, such a dipole experiences a turning effect that changes its angular velocity. That effect is a:Read the answer and worked solution →If the two ends of a dipole can be pulled apart, induction can create charged objects without any:Read the answer and worked solution →A test charge or a source charge moves, and as a result the force between them:Read the answer and worked solution →Benjamin Franklin explained early observations by supposing that one type of charge stayed put while the other:Read the answer and worked solution →Compared with the tiny nucleus, the electrons around it form a cloud that is:Read the answer and worked solution →A charged comb picks up small pieces of paper that carry no net charge, because the paper is first:Read the answer and worked solution →Catch the charge ideasRead the answer and worked solution →Pop the field wordsRead the answer and worked solution →Run the charge gatesRead the answer and worked solution →Slice the electricity wordsRead the answer and worked solution →Conductor or insulatorRead the answer and worked solution →Sort the electricity wordsRead the answer and worked solution →Type the numberRead the answer and worked solution →Electrostatics bingoRead the answer and worked solution →

Worked practice questions

A physicist records a charge measurement in SI units, named after a French physicist. That unit is the:

  1. Coulomb
  2. Kelvin
  3. Newton
  4. Hertz
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Correct answer: A. Coulomb

1. Charge is the quantity. 2. The name honours Charles-Augustin de Coulomb. 3. It is the coulomb. _Source: OpenStax University Physics Volume 2, Chapter 5, Electric Charges and Fields._

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Experiments established that charge comes in how many types?

  1. One type
  2. Two types
  3. Four types
  4. Eight types
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Correct answer: B. Two types

1. Positive and negative behave differently. 2. Other properties were found besides. 3. There are two types. _Source: OpenStax University Physics Volume 2, Chapter 5, Electric Charges and Fields._

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If a charge vanished in one place and appeared far away, one law would still hold. That law is the conservation of:

  1. Charge
  2. Colour
  3. Momentum
  4. Volume
Show answer and solution

Correct answer: A. Charge

1. Nothing is created or destroyed. 2. The total stays fixed. 3. It is conservation of charge. _Source: OpenStax University Physics Volume 2, Chapter 5, Electric Charges and Fields._

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More Physics topics

ElectricityElectrostaticsPhysics