NEW
Font size
WorksheetsIB DP Physics The standard model of matter
Total questions: 47
Worksheet time: 24mins
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
Which is not one of the three classes of elementary particles?
quarks
leptons
exchange particles
baryons
Which particle has electric charge of 2/3?
up quark
down quark
strange
kaon
Which particle has electric charge of - 1/3?
top quark
bottom quark
gluon
graviton
Name given for particles that have the same mass but all other properties are opposite.
anti-matter
anti-particles
annihilate
dark matter
Which particle is not involved in β+ decay?
electron
positron
proton
neutrino
Which particle is not involved in β- decay?
electron
positron
proton
anti-neutrino
A particle that is made out of quarks is?
hadron
lepton
boson
meson
What is the name of a particle/hadron where three quarks combine?
baryon
lepton
boson
meson
What is the name of a particle/hadron where three anti - quarks combine?
anti-baryon
anti-lepton
anti-boson
anti-meson
What is the name of a particle/hadron where a quark combines with an anti-quark?
quark
lepton
boson
meson
A baryon made out of two u quarks and one d quark (uud).
proton
neutron
boson
meson
A baryon made out of two d quarks and one u quark (udd).
proton
neutron
boson
meson
What is the electric charge of the proton?
+ 1
0
- 1
can’t tell
What is the symbol for baryon number?
B
Br
Bn
By
What is the baryon number of strange quark?
+ 1/3
– 1/3
+ 1
- 1
What is the baryon number of anti-baryons?
+ 1/3
– 1/3
+ 1
- 1
Determine the baryon number of a particle combined with u, c, t?
+ 1
0
- 1
can’t tell
Determine the baryon number of a particle combined with u quark and anti-down quark?
+ 1
0
- 1
can’t tell
True or false.
All baryons have the baryon number of +1.
True
False
True or false.
All anti baryons have the baryon number of -1.
True
False
True or false.
In all reactions, electric charge is conserved before and after the interaction.
True
False
True or false.
In all reactions, baryon number is conserved before and after the interaction.
True
False
True or false.
All mesons have the baryon number of 0.
True
False
Which of the following interactions do quarks not experience?
strong nuclear interaction
weak nuclear interaction
electromagnetic interaction
gravitational interaction
True or false.
Neutrinos have no mass.
True
False
True or false.
All leptons have the baryon number of -1/3.
True
False
True or false.
All leptons have the lepton number of +1.
True
False
Which of the following interactions do leptons not experience?
strong interaction
weak interaction
electromagnetic interaction
gravitational interaction
What is the name of the particle exchanged in the electromagnetic interaction?
Z0
W+
W-
photon
Which is not the name of the particle exchanged in the weak interaction?
Z0
W+
W-
gluon
True or false.
Exchange particles ( W +, W -, Z 0 ) for the weak interaction have mass.
True
False
What is the name of the exchange particles of the strong interaction?
gluon
W+
W-
photon
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.
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
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.
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
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
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
Determine the baryon number of all mesons?
+ 1
0
- 1
can’t tell
True or false.
All particles NOT made from quarks have a baryon number of 0.
True
False
True or false.
A hadron is a particle made out of quarks.
True
False
True or false.
All leptons that have electric charge, interact with the electromagnetic interaction.
True
False
True or false.
All leptons interact with the weak nuclear interaction.
True
False
Determine the baryon number of leptons?
+ 1
0
- 1
can’t tell
