Definition
The 'weak force,' also known as the weak interaction, is one of the four fundamental forces in physics. It's responsible for radioactive decay and certain types of nuclear reactions. It's called 'weak' because it's much weaker than the strong force and electromagnetism. It governs the interactions of subatomic particles, particularly leptons and quarks, and involves the exchange of W and Z bosons. Think of it as the force that slowly transforms particles.