Brainscape's Knowledge GenomeTM

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


See full index

Z A Level Physics 2 > Particle Summary > Flashcards

Particle Summary Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

What are the four fundamental forces and their exchange particles?

A
  1. Strong Nuclear (Gluon)
  2. Weak (Z, W+, W-)
  3. Electromagnetic (virtual photon)
  4. Gravity (graviton)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are examples of leptons?

A 
Electron
Electron neutrino 
Muon
Muon neutrino 
Tau
Tau neutrino
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What force is the lepton subject to?

A
  1. They do not feel the strong force

2. They are subject to the weak force

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

What are hadrons defining feature?

A

They feel the strong force

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

What is the structure of baryons?

A

Three quarks

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

What is the structure of mesons?

A

Quark-antiquark pair

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

What are examples of baryons?

A

Proton (uud) (only stable baryon)

Neutron (udd)

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

What are examples of mesons?

A

Pion (pi+) (ubard)

Kaon(K+) (ubars)

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

What is always conserved in particle interactions?

A 
Charge
Momentum
Mass-Energy
Lepton Number
Baryon number 
(Strangeness in strong but not in weak interactions)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What do muons decay into?

A

Electrons

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

What happens during Beta minus decay?

A

A d quark changes into a u quark

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

What happens during Beta plus decay?

A

A u quark changes into a d quark

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

What charges do quarks have?

A

+1/3, -1/3, +2/3, -2/3

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

What baryon numbers do quarks have?

A

+1/3, -1/3

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

What strangeness do quarks have?

A

+1, 0, -1

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

What charge of up quark?

A

+2/3 e

17
Q

What charge of down quark?

A

-1/3 e

18
Q

What change of s quark?

A

-1/3 e

19
Q

Which baryons is stable?

A

Free protons are stable and all other baryons will eventually decay into protons

20
Q

What is the quark structure of pion -?

A

d baru

21
Q

What is the quark structure of pion+?

A

u bard

22
Q

What is the quark structure of pion0?

A

Ubaru or dbard (this is its own antiparticle) (pion+ and minus are antiparticles of each other)

23
Q

What is the quark structure of kaon+?

A

Ubars

24
Q

What is the quark structure of kaon-

A

Sbaru

25
Q

What is the quark structure of kaon0?

A

Dbars (antiparticle= sbard) (K+ and K- are antiparticles of each other)

26
Q

What is the strangeness of K+?

A

+1

27
Q

What is the strangeness of K-?

A

-1

28
Q

What sit eh strangeness of K0?

A

-1

29
Q

Are kaons stable?

A

Kaons are not stable and decay via the weak interaction

Z A Level Physics 2 (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions