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3rd Form 2017 > Particle Physics > Flashcards

Particle Physics Flashcards

1
Q

What are the names of the six quarks?

A

Up, Down, Charm, Strange, Top, Bottom

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2
Q

What are the names of the six leptons?

A

Electron, Muon, Tau, Electron Neutrino, Muon Neutrino, Tau Neutrino

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3
Q

What is the charge of an up quark?

A

+2/3

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4
Q

What is the charge of a down quark?

A

-1/3

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5
Q

What is the charge on a strange quark?

A

-1/3

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6
Q

What is the charge on a charm quark?

A

+2/3

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7
Q

What is a fundamental particle?

A

A particle that is not made up of any smaller particles.

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8
Q

What are the two families of fundamental particles?

A

Quarks and leptons

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9
Q

What are hadrons?

A

Particles made up of quarks.

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10
Q

What are baryons?

A

Particles made up of three quarks

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11
Q

What are mesons?

A

Particles made up of a quark and an antiquark

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12
Q

What is the quark composition of a proton?

A

up up down

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13
Q

What is the quark composition of a neutron?

A

up down down

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14
Q

What type of heavy quark does a Sigma baryon contain?

A

strange

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15
Q

What is the quark composition of a Sigma +?

A

up up strange

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16
Q

What is quark composition of a Sigma 0?

A

up down strange

17
Q

What is the quark composition of a Sigma -?

A

down down strange

18
Q

What is the quark composition of a positive pion?

A

Up antidown

19
Q

What is the quark composition of a negative pion?

A

Down antiup

20
Q

What is the quark composition of a neutral pion?

A

up antiup or down antidown

21
Q

What is the charge on an electron?

A

-1

22
Q

What is the charge on a positron?

A

+1

23
Q

What is the charge on a neutrino?

A

0

24
Q

Do neutrinos have mass?

A

Yes, but it is exceptionally small

25
Q

Name the four fundamental forces.

A

Gravity, Electromagnetism, Strong, Weak

26
Q

What is the exchange boson for gravity?

A

Graviton (theoretically!)

27
Q

What is the exchange boson for the electromagnetic force?

A

Photon

28
Q

What is the exchange boson for the strong force?

A

Gluon

29
Q

What are the exchange bosons for the weak force?

A

W+, W-, Z0

30
Q

How do forces work in the standard model?

A

Particles transfer exchange bosons between each other to transfer forces

31
Q

Which forces does not fit correctly into the standard model?

A

Gravity

32
Q

What is the name of a theory that accounts for gravity, but none of the other forces?

A

General Relativity

3rd Form 2017 (3 decks)

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