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Fundamental Particles

The four fundamental forces

  • 3 things to know
  • Unit A2 2

Overview

Four fundamental forces, exchange particle of the strong force and exchange particles of the weak force.

What you need to know

Answer each one before you reveal it.

Your recallNot started
Key term

Name the four fundamental forces.

Key term

Name the exchange particles of the weak force.

Key term

Name the proposed exchange particle of the gravitational force.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Name the four fundamental forces.

    Model answer

    The strong nuclear force, the weak nuclear force, the electromagnetic force and the gravitational force.

  2. 2

    Name the exchange particle of the strong force.

    Model answer

    The gluon.

  3. 3

    Name the exchange particles of the weak force.

    Model answer

    The W⁺, W⁻ and Z⁰ bosons.

  4. 4

    Name the exchange particle of the electromagnetic force.

    Model answer

    The photon.

  5. 5

    Name the proposed exchange particle of the gravitational force.

    Model answer

    The graviton, which has never been detected.

  6. 6

    What is an exchange particle?

    Model answer

    A particle passed between two interacting particles, which transmits the force between them.

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AA current I is a charge q passing in time t.
BThe length l is vt.
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Coulomb is a quantity of charge.
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