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WorksheetsModern Physics Quiz 2
Total questions: 15
Worksheet time: 8mins
All of the following are quarks except
strange
bottom
charmed
spark
These are the category of hadrons that contain three quarks. This distinguishes them from mesons, which contain two (1 quark and 1 antiquark).
Gluons
Electrons
Leptons
Baryons
All baryons are assigned a baryon number of ___, all anti-baryons are assigned ___, and all non-baryons are ___
-1, +1, 0
-1, 0, +1
+1, -1, 0
0, -1, +1
All leptons are assigned a lepton number of ___, all anti-leptons are assigned ___, and all non-leptons are ___
-1, +1, 0
-1, 0, +1
+1, -1, 0
0, -1, +1
There are three families of leptons;
electron, muon, and pi.
electron, muon, and tau.
electron, pi and tau.
electron, pi and neutrino.
The main three conservation laws used in particle physics are:
Conservation of charge/strangeness, baryon and lepton numbers.
Conservation of gravity, charge and lepton numbers.
Conservation of momentum, hadron and lepton numbers.
Conservation of charge/strangeness, hadron and lepton numbers.
Which quarks form a neutron?
up, up, down
down, down, down
up, up, up
up, down, down
Tracks in particle detectors are created by...
collision between heavy particles
ionizations caused by charged particles
particles with no charge
particles moving close to the speed of light
a hadron with one quark and one antiquark
neutron
baryon
hadron
meson
an electron with a positive charge
neutrino
gauge boson
positron
gluon
a particle of the same mass and opposite charge
antiparticle
positron
Which statement concerning the forces between particles is incorrect?
Leptons experience the weak interaction.
Leptons experience the strong interaction.
Hadrons experience the weak interaction.
Hadrons experience the strong interaction.
Which of the following statements about muons is incorrect?
A muon is a lepton.
A muon has a greater mass than an electron.
A muon is made up of a quark and an anti-quark
A muon decays via the weak interaction
Which answer shows the correct interactions experienced by a hadron or a lepton?
Hadron: Strong = Yes. Weak = Yes
Lepton: Strong = Yes. Weak = Yes
Hadron: Strong = Yes. Weak = No
Lepton: Strong = Yes. Weak = No
