Ace A Level Physics 2025 – Power Up Your Physics Prowess!

Question: 1 / 400

What is a characteristic of leptons?

They are made up of quarks

They experience the electromagnetic force

They do not experience the strong force

Leptons are indeed unique among subatomic particles, and one of their defining characteristics is that they do not experience the strong nuclear force. This force is responsible for holding the protons and neutrons together in an atomic nucleus and is only experienced by particles known as hadrons, which include baryons (like protons and neutrons) and mesons.

Leptons, on the other hand, interact through the weak nuclear force, the electromagnetic force (if they are charged), and gravity, but they are completely unaffected by the strong force. This distinction is essential to understanding the behavior of fundamental particles in the universe.

While leptons do have mass, as indicated in one of the other options, the defining characteristic that separates them from other fundamental particles like quarks is their lack of interaction with the strong force.

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They have mass

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