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Physics Unit 1 AS > Quarks And Leptons > Flashcards

Quarks And Leptons Flashcards

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1
Q

List the 6 fundamental quarks

A 
Up
Down
Top
Bottom
Strange 
Charm
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2
Q

What are quarks influenced by

A

Nuclear strong force

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3
Q

List the six fundamental leptons

A 
Electron
Muon
Tauon
Electron neutrino
Muon neutrino
Tauon neutrino
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4
Q

What are leptons governed by

A

The nuclear weak force

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5
Q

What are bosons made up of

A

Mesons

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6
Q

What are mesons made up of

A

Quarks

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7
Q

What can bosons be?

A

Elementary (photons)

Combination (mesons)

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8
Q

List the five bosons

A 
Gluon
Photon
W+ boson
W- boson
Z boson
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9
Q

Antiparticle of a proton

A

Antiproton

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10
Q

Antiparticle of a neutron

A

Antineutron

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11
Q

Antiparticle of an electron

A

Positron

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12
Q

Antiparticle of a neutrino

A

Antineutrino

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13
Q

Antiparticle of a muon

A

Anti muon

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14
Q

What are hadrons

A

Particles and antiparticles that interact through the strong interaction

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15
Q

Give examples of hadrons

A

Protons
Neutrons
Pi mesons
K mesons

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16
Q

An interaction between a lepton and hadron

A

Ve + n = p+ e-

17
Q

Muon decay

A

_ _

u- = e- + ve + vu

18
Q

List two facts about fermions

A

Obey Pauli’s exclusion principle

Consists of quarks and leptons

19
Q

Charge and strangeness of an up quark

A

Charge +2/3

Strangeness 0

20
Q

Charge and strangeness of a down quark

A

Charge -1/3

Strangeness 0

21
Q

Charge and strangeness of a strange quark

A

Charge -1/3

Strangeness-1

22
Q

Quark components of a K+

A

_

u s

23
Q

Quark components of a K0

A

_ _

d s or s d

24
Q

Quark components of a K-

A

_

s u

25
Q

Quark components of a pi +

A

_

u d

26
Q

Quark components of a pi 0

A

u u, or d d, or s s

27
Q

Quark components of a pi -

A

_

d u

28
Q

Give the main rule in interactions that is true throughout science

A

Conservation of energy and charge

29
Q

Give the two particles rules

A

Conservation of lepton number

Conservation of strangeness

Physics Unit 1 AS (3 decks)

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