Y12 Particle Physics(From G Forms)

Which of these is not a fundamental particle?

• Positron

• Proton

• Neutrino

• Electron

A particle has a Lepton number 0 and a Baryon number 0. The particle is likely to be...

• Quark

• A strange particle

• Meson

• Tau particle

What makes a Hadron different to a Lepton?

• Leptons are have smaller masses

• Leptons are charged

• Hadrons have a Baryon number

• Hadrons are NOT fundamental Leptons are.

a certain type of matter is made from a quark anti quark pair. What group will it belong too?

• Leptons

• Bosons

• Baryons

• Mesons

All reactions involve conservation laws. Generally there are 4 conservation laws. These include Charge, Baryon number, Lepton number and...

Beta decay involves the production of an electron and anti neutrino. If the anti neutrino was not released which conservation law would be violated?

• Charge

• Baryon number

• Strangness

• Lepton number

In K-Captue a nucleus captures an electron. Which statement is correct?

• A low orbit proton attracts a proton

• A K shell electron is converted to a positron

• A K shell electron is captured by a proton resulting in a neutron being formed and a neutrino being released.

• A proton annihilates with an electron resulting in a neutrino being released.

Which of the following fundamental forces is the strongest but shortest range?

• Stong force

• Gravity

• Weak Interaction

• Electromagnetic

Look at the reaction. Consider how many of these conservation laws apply.

Charge - Baryon number - Lepton number

Strangeness

• ALL

• Only charge

• Lepton and Charge

• Strangeness only

Which has the highest charge to mass ratio?

• electron

• proton

• neutron

• alpha particle