p1 particles Flashcards
what is specific charge and how do you calculate it
charge per unit mass
charge of particle / mass of particle
what is the strong force
the force that holds together protons
how does the nuclear strong force work
less than 0.5 fm the strong force is repulsive
between 0.5 fm and 3 fm the strong force is stronger than the electromagnetic force so it pulls them together
after 3fm the electrostatic attraction is stronger than the string force so it pulls them apart
how do you convert joules to ev
ev to joules
j to ev = / 1.6x10^-19
ev to j = x 1.6x10^-19
how can radiation be split up
into discrete packets called photons
what do photons contain
an amount of energy that is related to the frequency of light
what does wave speed =
wavelength x frequency
name 2 equations that energy is = to
planks constant(6.63x10^-34) x frequency
h(planks constant)c(speed of light)/wavelength
what is antimatter
the same element with the same properties but a different charge
what happens when antimatter and matter collide
they annihilate each other and leave energy
how do you calculate the energy from two antimatter colliding
energy = mass x speed of light^2
whats the equation for beta positive
proton -> neutron + electron+ + electron neutrino
whats the equation for electron capture
proton + electron -> neutron + electron neutrino
what are the 4 fundemental interatrations (forces)
gravity, weak force, electromagnetic and strong force
name the 3 subatomic particles
hadrons,leptons and bosons
what are hadrons
particles that feel the strong nuclear force
name the two classes of hadrons
baryons,antibaryons and mesons
what are baryons and are they conserved
they are protons and neutrons(anti)
they are conserved
what are baryons made up of and
antibaryons
3 quarks
3 antiquarks
name the quarks of protons
two ups and one down
name the quarks of neurtons
two down and on up
what are quarks
fundamental particle that are the building blocks of matter and subatomic particles
name the order of quarks in mass
up charm top
down strange bottom
name the two types of mesos
pions
kaon
what are mesons made up of
quark + antiquark
what are pions made up of
one up and one down
what are kaons made up of
up or down + strange
what is strange and is it conserved
a property of kaons and is normally conserved
whats the charge of a strange quark
-1
what are strange quarks made up of
and how are they made?
always made up of one stange and antistrange quark
made by the strong nuclear force
how does strangeness decay
by the weak force
by +1,0,-1
what happens when strangeness decays
they are not conserved
what is the weak force
changes the type of quark
what do kaons decay into and how
pions
weak force
name the mass order of leptons
electon neutrino muon neutrino tau neutrino
electron muon tau
what do muons decay into
an electron
what does tau decay into
quarks
What’s a n exchange particle
Changes the charge of a particle
What’s the range relative strength and exchange particle of gravity
What does it act between aswell
No range
Strength: 1x10^-34
Exchange : graviton
All objects with mass
What’s the range relative strength and exchange particle of the strong force
What does it act between aswell
1x10^-15
Strength: 1x10^3
Pions
Quarks
What’s the range relative strength and exchange particle of electromagnetic
What does it act between aswell
No limit
Strength 1
Exchange virtual photon
Between charged objects
What’s the range relative strength and exchange particle of weak force
What does it act between aswell
1x10^-18
Strength 1x10^-10
Exchange bosons
Fundamental particles
Marriage was is only conserved in
Strong force
What is the role of pions
Found between quarks and help bind quarks together
What’s Higgs field
When particles with mass enter the higgs field it causes them to slow down
How are virtual photons formed
While electrons are being transferred between cells
Annihilation of matter and antimatter
