WorksheetsMod Physics HW #4
Total questions: 18
Worksheet time: 4hrs 1mins
What is the total number of quarks in a helium nucleus consisting of 2 protons and 2 neutrons?
16
12
8
4
During the process of beta (β-) emission, a neutron in the nucleus of an atom is converted into a proton, an electron, an electron antineutrino, and energy. Based on conservation laws, how does the mass of the neutron compare to the mass of the proton?
Mass of neutron > Mass of proton
Mass of neutron < Mass of proton
Mass of neutron = Mass of proton
Cannot be determined
Since charge must be conserved in the reaction shown, what charge must an electron antineutrino carry?
+1e
-1e
0e
+2e
A baryon may have a charge of
−31e
0 e
+32e
+34e
An antibaryon is composed of
three quarks
one quark and 2 antiquarks
three antiquarks
two quarks and one antiquark
What is the electric charge of a pion having a quark composition of ud
(a)
What is the electric charge of a pion having a quark composition of db
(a)
A particle has a quark composition of dds.
What is the charge on and the classification of the particle?
-1e, Baryon
+1e, Baryon
-1e, meson
+1e, meson
A particle has a quark composition of su .
What is the charge on and the classification of the particle?
-1e, Baryon
+1e, Baryon
-1e, meson
+1e, meson
What is the mass of an anti-neutron, in kilograms?
Base your answer on the table below, which shows data about various subatomic particles.
Which particle listed on the table has the opposite charge of, and is more massive than, a proton?
antiproton
neutron
lambda
omega
A particle unaffected by an electric field could have a quark composition of
css
bbb
udc
uud
A top quark has an approximate charge of
–1.07 × 10–19 C
–2.40 × 10–19 C
+1.07 × 10–19 C
+2.40 × 10–19 C
According to the Standard Model of Particle Physics, a meson is composed of
a quark and a muon neutrino
a quark and an antiquark
three quarks
a lepton and an antilepton
An antimuon neutrino is a
lepton with a -le charge
lepton with 0 charge
meson with a -le charge
meson with 0 charge
A deuterium nucleus consists of one proton and one neutron.
The quark composition of a deuterium nucleus is
2 up quarks and 2 down quarks
2 up quarks and 4 down quarks
3 up quarks and 3 down quarks
4 up quarks and 2 down quarks
The interaction that is most responsible for binding three quarks together in a proton is the
strong force
weak force
electromagnetic force
gravitational force
An antimuon neutrino is a
lepton with a −1e charge
lepton with 0 charge
meson with a −1 e charge
meson with 0 charge
