Particle Physics

Question 1

What are the names of the six quarks?

Answer 1

Up, Down, Charm, Strange, Top, Bottom

Question 2

What are the names of the six leptons?

Answer 2

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

Question 3

What is the charge of an up quark?

Answer 3

+2/3

Question 4

What is the charge of a down quark?

Answer 4

-1/3

Question 5

What is the charge on a strange quark?

Answer 5

-1/3

Question 6

What is the charge on a charm quark?

Answer 6

+2/3

Question 7

What is a fundamental particle?

Answer 7

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

Question 8

What are the two families of fundamental particles?

Answer 8

Quarks and leptons

Question 9

What are hadrons?

Answer 9

Particles made up of quarks.

Question 10

What are baryons?

Answer 10

Particles made up of three quarks

Question 11

What are mesons?

Answer 11

Particles made up of a quark and an antiquark

Question 12

What is the quark composition of a proton?

Answer 12

up up down

Question 13

What is the quark composition of a neutron?

Answer 13

up down down

Question 14

What type of heavy quark does a Sigma baryon contain?

Answer 14

strange

Question 15

What is the quark composition of a Sigma +?

Answer 15

up up strange

Question 16

What is quark composition of a Sigma 0?

Answer 16

up down strange

Question 17

What is the quark composition of a Sigma -?

Answer 17

down down strange

Question 18

What is the quark composition of a positive pion?

Answer 18

Up antidown

Question 19

What is the quark composition of a negative pion?

Answer 19

Down antiup

Question 20

What is the quark composition of a neutral pion?

Answer 20

up antiup or down antidown

Question 21

What is the charge on an electron?

Answer 21

-1

Question 22

What is the charge on a positron?

Answer 22

+1

Question 23

What is the charge on a neutrino?

Answer 23

0

Question 24

Do neutrinos have mass?

Answer 24

Yes, but it is exceptionally small

Question 25

Name the four fundamental forces.

Answer 25

Gravity, Electromagnetism, Strong, Weak

Question 26

What is the exchange boson for gravity?

Answer 26

Graviton (theoretically!)

Question 27

What is the exchange boson for the electromagnetic force?

Answer 27

Photon

Question 28

What is the exchange boson for the strong force?

Answer 28

Gluon

Question 29

What are the exchange bosons for the weak force?

Answer 29

W+, W-, Z0

Question 30

How do forces work in the standard model?

Answer 30

Particles transfer exchange bosons between each other to transfer forces

Question 31

Which forces does not fit correctly into the standard model?

Answer 31

Gravity

Question 32

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

Answer 32

General Relativity