Lesson 7.1.1

7.1.1 Electric fields and electric field strength Quiz: Pearson Edexcel Physics, Unit 7

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 7.1.1, Electric fields and electric field strength: 20 multiple choice questions for the Pearson Edexcel Physics (9PH0), Unit 7: Electric and Magnetic Fields, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. What does a charged particle experience in an electric field?

    • No force
    • A nuclear force
    • A magnetic force
    • An electrostatic force

  2. Electric field strength is defined by which equation, where F is force and Q is charge?

    • E = F Q
    • E = F / Q^2
    • E = F / Q
    • E = Q / F

  3. What is the SI unit of electric field strength?

    • C N^-1
    • N C
    • J C^-1
    • N C^-1

  4. Which unit is equivalent to newton per coulomb for electric field strength?

    • V m^-1
    • V m
    • V m^-2
    • J m^-1

  5. Which direction defines the electric field vector at any given point?

    • Force on negative charge
    • Towards the nearest electron
    • Perpendicular to field lines
    • Force on positive charge

  6. A 2.0 microcoulomb charge experiences a force of 0.010 N in an electric field. What is the field strength?

    • 2.0 x 10^-4 N C^-1
    • 5.0 x 10^-3 N C^-1
    • 5.0 x 10^3 N C^-1
    • 2.0 x 10^4 N C^-1

  7. What is the magnitude of the force on an electron, charge 1.6 x 10^-19 C, in a field of 300 N C^-1?

    • 1.9 x 10^-16 N
    • 4.8 x 10^-19 N
    • 5.3 x 10^-16 N
    • 4.8 x 10^-17 N

  8. The potential difference between two parallel plates is 12 V and they are separated by 0.040 m. What is the field strength between them?

    • 0.0033 V m^-1
    • 480 V m^-1
    • 300 V m^-1
    • 3.0 V m^-1

  9. A proton, charge 1.6 x 10^-19 C, is placed in a uniform electric field of strength 2.0 x 10^4 N C^-1. What is the force on the proton?

    • 3.2 x 10^-19 N
    • 1.3 x 10^-23 N
    • 3.2 x 10^-15 N
    • 8.0 x 10^-15 N

  10. Two parallel plates are 5.0 cm apart with a potential difference of 1.5 kV between them. What is the electric field strength between the plates?

    • 7.5 x 10^1 V m^-1
    • 75 V m^-1
    • 3.3 x 10^-5 V m^-1
    • 3.0 x 10^4 V m^-1

  11. A positive charge is released in an electric field pointing east. Which direction does it accelerate?

    • East
    • West
    • North
    • South

  12. An electron is released in an electric field pointing east. In which direction does it accelerate?

    • South
    • East
    • West
    • North

  13. What does the density of electric field lines represent?

    • Electric potential
    • Field strength
    • Charge polarity
    • Field direction

  14. What pattern do field lines form in a uniform electric field?

    • Parallel, equally spaced
    • Radial lines
    • Concentric circles
    • Converging lines

  15. A charge of -5.0 microcoulomb is placed in an electric field of 200 N C^-1 directed east. What is the force on the charge?

    • 1.0 x 10^-3 N, directed west
    • 1.0 x 10^-3 N, directed east
    • 2.5 x 10^-8 N, directed west
    • 4.0 x 10^-2 N, directed east

  16. An oil droplet of charge 3.2 x 10^-18 C is held stationary between two plates in a field of 2.0 x 10^3 V m^-1. What is the weight of the droplet?

    • 3.2 x 10^-15 N
    • 6.4 x 10^-15 N
    • 6.4 x 10^-21 N
    • 6.3 x 10^-12 N

  17. A 2.0 g particle of charge +6.0 microcoulomb is to be held stationary in a uniform field. What field strength is needed to balance its weight?

    • 3.3 x 10^6 N C^-1
    • 3.3 x 10^3 N C^-1
    • 1.2 x 10^2 N C^-1
    • 1.2 x 10^-8 N C^-1

  18. An electron moves in a uniform electric field of strength 2000 N C^-1. What is its acceleration? The electron mass is 9.11 x 10^-31 kg.

    • 1.8 x 10^11 m s^-2
    • 3.2 x 10^-16 m s^-2
    • 3.5 x 10^14 m s^-2
    • 9.0 x 10^-7 m s^-2

  19. Why can two electric field lines never cross at a single point?

    • Single field direction
    • Zero potential gradient
    • Constant flux linkage
    • Infinite charge density

  20. What force acts on a stationary charge Q in an electric field E?

    • E over Q
    • Q over E
    • Zero
    • QE

All Pearson Edexcel Physics quizzes