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- Multiple ChoicePlease save your changes before editing any questions.
A particle that is not made out of any smaller component constituent parts is called?
the elementary particle
the primary particle
the electron neutrino
the anti-neutrino
- Multiple ChoicePlease save your changes before editing any questions.
Which is not one of the three classes of elementary particles?
quarks
leptons
exchange particles
baryons
- Multiple ChoicePlease save your changes before editing any questions.
Which particle has electric charge of 2/3?
up quark
down quark
strange
kaon
- Multiple ChoicePlease save your changes before editing any questions.
Which particle has electric charge of - 1/3?
top quark
bottom quark
gluon
graviton
- Multiple ChoicePlease save your changes before editing any questions.
Name given for particles that have the same mass but all other properties are opposite.
anti-matter
anti-particles
annihilate
dark matter
- Multiple ChoicePlease save your changes before editing any questions.
Which particle is not involved in β+ decay?
electron
positron
proton
neutrino
- Multiple ChoicePlease save your changes before editing any questions.
Which particle is not involved in β- decay?
electron
positron
proton
anti-neutrino
- Multiple ChoicePlease save your changes before editing any questions.
A particle that is made out of quarks is?
hadron
lepton
boson
meson
- Multiple ChoicePlease save your changes before editing any questions.
What is the name of a particle/hadron where three quarks combine?
baryon
lepton
boson
meson
- Multiple ChoicePlease save your changes before editing any questions.
What is the name of a particle/hadron where three anti - quarks combine?
anti-baryon
anti-lepton
anti-boson
anti-meson
- Multiple ChoicePlease save your changes before editing any questions.
What is the name of a particle/hadron where a quark combines with an anti-quark?
quark
lepton
boson
meson
- Multiple ChoicePlease save your changes before editing any questions.
A baryon made out of two u quarks and one d quark (uud).
proton
neutron
boson
meson
- Multiple ChoicePlease save your changes before editing any questions.
A baryon made out of two d quarks and one u quark (udd).
proton
neutron
boson
meson
- Multiple ChoicePlease save your changes before editing any questions.
What is the electric charge of the proton?
+ 1
0
- 1
can’t tell
- Multiple ChoicePlease save your changes before editing any questions.
What is the symbol for baryon number?
B
Br
Bn
By
- Multiple ChoicePlease save your changes before editing any questions.
What is the baryon number of strange quark?
+ 1/3
– 1/3
+ 1
- 1
- Multiple ChoicePlease save your changes before editing any questions.
What is the baryon number of anti-baryons?
+ 1/3
– 1/3
+ 1
- 1
- Multiple ChoicePlease save your changes before editing any questions.
Determine the baryon number of a particle combined with u, c, t?
+ 1
0
- 1
can’t tell
- Multiple ChoicePlease save your changes before editing any questions.
Determine the baryon number of a particle combined with u quark and anti-down quark?
+ 1
0
- 1
can’t tell
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All baryons have the baryon number of +1.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All anti baryons have the baryon number of -1.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
In all reactions, electric charge is conserved before and after the interaction.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
In all reactions, baryon number is conserved before and after the interaction.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All mesons have the baryon number of 0.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following interactions do quarks not experience?
strong nuclear interaction
weak nuclear interaction
electromagnetic interaction
gravitational interaction
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
Neutrinos have no mass.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All leptons have the baryon number of -1/3.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All leptons have the lepton number of +1.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following interactions do leptons not experience?
strong interaction
weak interaction
electromagnetic interaction
gravitational interaction
- Multiple ChoicePlease save your changes before editing any questions.
What is the name of the particle exchanged in the electromagnetic interaction?
Z0
W+
W-
photon
- Multiple ChoicePlease save your changes before editing any questions.
Which is not the name of the particle exchanged in the weak interaction?
Z0
W+
W-
gluon
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
Exchange particles ( W +, W -, Z 0 ) for the weak interaction have mass.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
What is the name of the exchange particles of the strong interaction?
gluon
W+
W-
photon
- Multiple ChoicePlease save your changes before editing any questions.
Which is the true statement for the principle of quark confinement:
a. It is impossible to observe isolated quarks.
b. Quarks only exist within hadrons.
c. The total energy needed to separate the quark from anti-quark gets larger as the separation increases.
d. All of them.
- Multiple ChoicePlease save your changes before editing any questions.What is CERN ?a. the Central Energy Research Networkb. the Chief Environmental Research Newsc. the European Organization for Nuclear Researchd. A very expensive hole in the ground.
- Multiple ChoicePlease save your changes before editing any questions.What does LHC stand for?a. Large Hadron Colliderb. Little Hadron Controlc. Light Hydrogen Collectord. Lethal Hydrogen Control
- Multiple ChoicePlease save your changes before editing any questions.
What is the mass of the Higgs Boson discovered in 2012?
approximately 125 M eV
approximately 125 G eV
approximately 125 M eV c-2
approximately 125 G eV c-2
- Multiple ChoicePlease save your changes before editing any questions.
What is the reason that particles such as pions, kaons and etas, the hyperons and others are not found in ordinary matter?
As they are very unstable.
As they decay very quickly.
As their half-lives are ranging from 10-10 s to 10-24 s.
All of them.
- Multiple ChoicePlease save your changes before editing any questions.
On the back of your Exit card, write the number 1 and then give one example of the α decay equation.
Choose one that is correct
Ms. Lee is very nice.
Ms. Lee is just okay
- Multiple ChoicePlease save your changes before editing any questions.
On the back of your Exit card, write the number 2 and then give one example of the β+ decay equation.
Choose one that is correct
Ms. Lee is very supportive.
Ms. Lee is just okay
- Multiple ChoicePlease save your changes before editing any questions.
On the back of your Exit card, write the number 3 and then give one example of the β- decay equation.
Choose one that is correct
Ms. Lee is very helpful.
Ms. Lee is just okay
- Multiple ChoicePlease save your changes before editing any questions.
Determine the baryon number of all mesons?
+ 1
0
- 1
can’t tell
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All particles NOT made from quarks have a baryon number of 0.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
A hadron is a particle made out of quarks.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All leptons that have electric charge, interact with the electromagnetic interaction.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
True or false.
All leptons interact with the weak nuclear interaction.
True
False
- Multiple ChoicePlease save your changes before editing any questions.
Determine the baryon number of leptons?
+ 1
0
- 1
can’t tell