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How to tell the difference between strong and weak forces? Watch

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    I have always struggled with this. When it shows an equation and it asks which force is used in the interaction I can never tell if it is the strong nuclear force or the weak nuclear force. Any help would be greatly appreciated. Thanks.
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    Strong force is when hadrons interact, weak force is when a quark changes and there is a decay.

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    (Original post by DSG7799)
    Strong force is when hadrons interact, weak force is when a quark changes and there is a decay.

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    Thanks, that make more sense now.
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    Strangeness is conserved in the strong
    Strange particles are formed in pairs in the strong interaction (with opposite strangenesses/charges so strangeness conserves)
    Strangeness is not conserved in the weak
    Weak interaction is the only interaction that can change a quark's character (change the quark formation of a particle)

    Physics
 
 
 
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