Applications of conservation laws (AQA A-Level Physics): Quizzes

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Applications of conservation laws
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Which quantity must always be conserved in all particle interactions?

Baryon number

In which type of interaction is strangeness NOT required to be conserved?

Weak interactions

What type of interaction causes beta-minus and beta-plus decay?

Weak interaction

Which equation represents beta-minus decay?

n→p+e−+νˉen \rightarrow p + e^- + \bar{\nu}_e

What is the total charge after beta-minus decay: n→p+e−+νˉen \rightarrow p + e^- + \bar{\nu}_e?

00

What is the baryon number after beta-minus decay: n→p+e−+νˉen \rightarrow p + e^- + \bar{\nu}_e?

11

What is electron lepton number after: n→p+e−+νˉen \rightarrow p + e^- + \bar{\nu}_e?

00

In beta-minus decay, which quark change occurs in the neutron?

Down quark to up quark

In beta-plus decay, which quark change occurs in the proton?

Up quark to down quark

What does a W+W^+ boson decay into during beta-plus decay?

e+e^+ and νe\nu_e

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