Using You Textbook And/Or the Videos on Stl Link Answer the Following Questions

Name:

Particle Adventure

Using you textbook and/or the videos on stl link answer the following questions

1)What are the three elementary particles?

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2)In the table below record the six flavours of quarks, their charge and their baryon number

Flavour of Quark / Charge / Baryon number

3)How do quarks combine to make the two types of hadron?

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4)Using the following notation to show the charge on a quark answer part (a) – (f)

up quark = u+2/3

down quark = d-1/3

(a)Write two up quarks and one down quark with their charges below

______

(b)What is the total charge of the quarks in (a) ?______

(c)The total charge of (a) means that it must be a (proton, neutron, electron)______

(d)Write two down quarks and one up quark with their charges below

______

(e)What is the total charge of the quarks in (d)?______

(f)The total charge of # 4 means that it must be a (proton, neutron, electron)______

5)What is the difference between matter and anti-matter?

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6)What happens when matter and anti-matter particles meet?

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7)Complete the table below to show the six types of Leptons and their charge

Type of Lepton / Charge

8)What do all neutrinos have in common?

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9)How does the standard model explain how particles interact or exert a ‘force’ on each other?

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10)In the table below record the four fundamental ‘forces’ and their characteristics

Force
Exchange particle(s)
Relative strength
Range
Example(s)

11)What is meant by ‘Confinement?”

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12)For any interaction between particles, what is the rule for charge, baryon number and lepton number before and after the interaction?

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13)What is the Higgs Boson?

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14)The table below lists leptons and their antiparticles.

Lepton / Lepton symbol / Antilepton symbol
Electron / e- / e+
Electron neutrino / νe / νe
Muon / μ- / μ+
Muon neutrino / νμ / νμ
Tau / τ- / τ+
Tau neutrino / ντ / ντ

time

Describe the particle interaction represented by the Feynman diagram above.
Your description needs to name the particles and the type of force carrier involved.

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15. Look at each of the drawings below. Which is the best summary of the key ideas behind particle physics: A, B or C?

A:B:

C :

WORKSHEET #4- PUTTING QUARKS TOGETHER

NAME______

up quark = u+2/3

down quark = d-1/3

3)Write two up quarks and one down quark with their charges in these

blanks: u+2/3 u+2/3 d-1/3

4)What is the total charge of the quarks in #9? or +1

5)The total charge of # 9 means that it must be a (proton, neutron, electron) proton

6)Write two down quarks and one up quark with their charges in these blanks: d-1/3 d-1/3 u+2/3

7)What is the total charge of the quarks in #12?__0 ______

8)The total charge of # 12 means that it must be a (proton, neutron, electron) neutron

9)On the “family tree” of particles, the up and down quarks are on the same branch as the electron and electron neutrino. Can you think of a reason why these particles would be more closely related to each other than to the other quarks and leptons?

Three of these particles(up, down, electron) make up ordinary matter