Lesson Worksheet: Color Charge Physics

In this worksheet, we will practice determining which combinations of color charge quarks must have in order for them to form hadrons.

Q1:

The diagram shows six baryons and their quark content. Which of the diagrams do not correctly represent possible quark combinations? How the quarks are colored in the diagrams does not represent their electric charges.

• A(ii), (iv), and (vi)
• B(i), (ii), and (vi)
• C(i), (ii), and (iii)
• D(i), (iii), and (v)
• E(iv), (v), and (vi)

Q2:

The diagram shows six mesons and their quark content. Which of the diagrams do not correctly represent possible quark combinations? How the quarks are colored in the diagrams does not represent their electric charges.

• A(i), (ii), and (v)
• B(i), (iii), and (v)
• C(iii), (iv), and (v)
• D(i), (ii), and (iii)
• E(iv), (v), and (vi)

Q3:

The diagram shows six mesons and their quark content. Which of the diagrams do not correctly represent possible quark combinations? How the quarks are colored in the diagrams does not represent their electric charges.

• A(i), (ii), and (iii)
• B(iii), (iv), and (v)
• C(ii), (iv), and (vi)
• D(iv), (v), and (vi)
• E(iii), (v), and (vi)

Q4:

A pentaquark is a hypothetical particle that is made up of five quarks. The diagram shows a possible configuration of the quark content of a pentaquark. The colors of the quarks correspond to their color charge.

What is the total color charge of this pentaquark?

• ARed
• BGreen
• CWhite
• DBlue
• EAntigreen

What is the total relative electric charge of this pentaquark?

Q5:

The diagram shows six baryons and their quark content. The colors of the quarks correspond to their color charge. Which baryons have color configurations that are not possible?

• A(iii) and (iv)
• B(iii) and (v)
• C(v) and (vi)
• D(i) and (ii)
• E(iv) and (v)

Q6:

A tetraquark is a hypothetical particle that is made up of four quarks. The diagram shows a possible configuration of the quark content of a tetraquark. The colors of the quarks correspond to their color charge.

What is the total color charge of this tetraquark?

• AGreen
• BRed
• CWhite
• DBlue
• EAntiblue

What is the total relative electric charge of this tetraquark?

• A
• B0
• C1
• D
• E

Q7:

The diagram shows six baryons and their quark content. Which of the diagrams do not correctly represent possible quark combinations? (How the quarks are colored in the diagrams does not represent their electric charges.)

• A(iii), (iv), and (v)
• B(i), (iii), and (v)
• C(ii), (iii), and (iv)
• D(iii), (v), and (vi)
• E(i), (ii), and (iii)

Q8:

A pentaquark is a hypothetical particle that is made up of five quarks. The diagram shows a configuration of the quark content of a pentaquark that is not possible. The colors of the quarks correspond to their color charge.

What would the total color charge of this particle be?

• ABlue
• BWhite
• CAntiblue
• DRed
• EGreen

What would the total relative electric charge of this particle be?

• A
• B
• C
• D
• E

What would the total strangeness of this particle be?

Q9:

A tetraquark is a hypothetical particle that is made up of four quarks. The diagram shows a configuration of four quarks that is not possible. The colors of the quarks correspond to their color charge.

Which of the following statements are reasons why this quark configuration is not possible?

(i) A particle cannot contain more than one of any given flavor of quark.

(ii) The particle has a noninteger relative electric charge.

(iii) A tetraquark must have a relative electric charge of 0.

(iv) The total color charge of the particle is not white.

• Aii and iv
• Bi and iv
• Ciii and iv
• Di and ii
• Ei and iii

Q10:

The diagram shows six baryons and their quark content. Which of the diagrams do not correctly represent possible quark combinations? How the quarks are colored in the diagrams does not represent their electric charges.

• A(ii), (v), and (vi)
• B(i), (iii), and (v)
• C(ii), (iii), and (iv)
• D(i), (ii), and (iii)
• E(iv), (v), and (vi)