Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

AS level physics > p1 particles > Flashcards

p1 particles Flashcards

1
Q

what is specific charge and how do you calculate it

A

charge per unit mass

charge of particle / mass of particle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the strong force

A

the force that holds together protons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

how does the nuclear strong force work

A

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 well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

how do you convert joules to ev
ev to joules

A

j to ev = / 1.6x10^-19
ev to j = x 1.6x10^-19

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

how can radiation be split up

A

into discrete packets called photons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what do photons contain

A

an amount of energy that is related to the frequency of light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what does wave speed =

A

wavelength x frequency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

name 2 equations that energy is = to

A

planks constant(6.63x10^-34) x frequency

h(planks constant)c(speed of light)/wavelength

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is antimatter

A

the same element with the same properties but a different charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what happens when antimatter and matter collide

A

they annihilate each other and leave energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

how do you calculate the energy from two antimatter colliding

A

energy = mass x speed of light^2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

whats the equation for beta positive

A

proton -> neutron + electron+ + electron neutrino

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

whats the equation for electron capture

A

proton + electron -> neutron + electron neutrino

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what are the 4 fundemental interatrations (forces)

A

gravity, weak force, electromagnetic and strong force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

name the 3 subatomic particles

A

hadrons,leptons and bosons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what are hadrons

A

particles that feel the strong nuclear force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

name the two classes of hadrons

A

baryons,antibaryons and mesons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

what are baryons and are they conserved

A

they are protons and neutrons(anti)
they are conserved

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what are baryons made up of and
antibaryons

A

3 quarks
3 antiquarks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

name the quarks of protons

A

two ups and one down

21
Q

name the quarks of neurtons

A

two down and on up

22
Q

what are quarks

A

fundamental particle that are the building blocks of matter and subatomic particles

23
Q

name the order of quarks in mass

A

up charm top

down strange bottom

24
Q

what are electrons made up of

A

mesons

25
Q

name the two types of mesos

A

pions
kaon

26
Q

what are mesons made up of

A

quark + antiquark

27
Q

what are pions made up of

A

one up and one down

28
Q

what are kaons made up of

A

up or down + strange

29
Q

what is strange and is it conserved

A

a property of kaons and is normally conserved

30
Q

what causes the strong nuclear force

A

protons and neutrons are made up of up-and-down quarks
so they exchange pi mesons with each other
pi mesons hold the nucleus together

31
Q

whats the charge of a strange quark

A

-1

32
Q

what are strange quarks made up of
and how are they made?

A

always made up of one stange and antistrange quark

made by the strong nuclear force

33
Q

how does strangeness decay

A

by the weak force
by +1,0,-1

34
Q

what happens when strangeness decays

A

they are not conserved

35
Q

what is the weak force

A

changes the type of quark

36
Q

what do kaons decay into and how

A

pions
weak force

37
Q

name the mass order of leptons

A

electon neutrino muon neutrino tau neutrino

electron muon tau

38
Q

what do muons decay into

A

an electron

39
Q

what does tau decay into

A

quarks

40
Q

What’s a n exchange particle

A

Changes the charge of a particle

41
Q

What’s the range relative strength and exchange particle of gravity

What does it act between aswell

A

No range
Strength: 1x10^-34
Exchange : graviton

All objects with mass

42
Q

What’s the range relative strength and exchange particle of the strong force

What does it act between aswell

A

1x10^-15
Strength: 1x10^3
Pions

Quarks

43
Q

What’s the range relative strength and exchange particle of electromagnetic

What does it act between aswell

A

No limit
Strength 1
Exchange virtual photon
Between charged objects

44
Q

What’s the range relative strength and exchange particle of weak force

What does it act between aswell

A

1x10^-18
Strength 1x10^-10
Exchange bosons
Fundamental particles

45
Q

Marriage was is only conserved in

A

Strong force

46
Q

What is the role of pions

A

Found between quarks and help bind quarks together

47
Q

What’s Higgs field

A

When particles with mass enter the higgs field it causes them to slow down

48
Q

How are virtual photons formed

A

While electrons are being transferred between cells

Annihilation of matter and antimatter

AS level physics (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions