AQA A Level Physics: Quarks and Particle Physics Quiz

Who discovered the neutron?

• Einstein

• Chadwick

• Rutherford

• Bohr

What do quarks combine to form?

• Hadrons

• Electrons

• Atoms

• Neutrons

Which quark has a charge of +2/3?

• Anti-strange

• Up

• Down

• Strange

What is the charge of an anti-down quark?

• +2/3

• +1/3

• -2/3

• -1/3

What is the strangeness number of an anti-strange quark?

• +2

• 0

• -1

• +1

Which particle is known as the only stable baryon?

• Electron

• Pion

• Proton

• Neutron

What particles do protons and neutrons exchange to carry the strong nuclear force?

• Electrons

• Neutrinos

• Kaons

• Pions

Which quark is involved in the composition of kaons?

• Strange

• Charm

• Down

• Up

What type of emission leads to neutron decay in an unstable isotope?

• Beta plus

• Beta minus

• Gamma

• Alpha

What is conserved when a neutron decays into a proton, electron, and anti-neutrino?

• Energy

• Momentum

• Charge

• All of the above