International A Level (IAL)PhysicsEdexcelExam Questions4. Further Mechanics, Fields & ParticlesParticle Interactions & Conservation

Particle Interactions & Conservation (Edexcel International A Level (IAL) Physics): Exam Questions

Exam code: YPH11

35 mins9 questions

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Particle Interactions & Conservation

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1
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1 mark

Which of the following is a fundamental particle?

  • atom

  • baryon

  • neutrino

  • pion

Choose your answer

2
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1 mark

Which of the following is a fundamental particle?

  • antiproton

  • muon

  • neutron

  • pion

Choose your answer

3
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1 mark

In 2015, a pentaquark was discovered.

The pentaquark was made of 5 quarks, c, c¯, d, u, u.

The pentaquark can form a baryon-meson combination.

Which row of the table shows a possible arrangement of the quarks?

Quarks in baryon

Quarks in meson

A

d u u

c c¯

B

u c¯ u

d c

C

c¯  u

d u c

D

u d

c c¯ u

    Choose your answer

    4
    1 mark

    The Λ0 baryon has the quark content uds (one up, one down, one strange).

    The table shows four possible sets of values for the charge, baryon number and strangeness of the Λ0.

    Which row shows the correct values?

    Row

    Charge / e

    Baryon number

    Strangeness

    A

    0

    +1

    +1

    B

    0

    +1

    −1

    C

    +1

    +1

    −1

    D

    0

    −1

    −1

      Choose your answer

      1
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      Which of the following is the quark structure for a π− particle?

      • ddd

      •  uud¯

      • u¯d 

      • ud

      Choose your answer

      2
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      1 mark

      Which row in the table gives the charge and mass of an antiproton?

       

      Charge / C

      Mass / kg

      A

      1.6 × 10−19

      −9.11 × 10−31

      B

      –1.6 × 10−19

      9.11 × 10−31

      C

      1.6 × 10−19

      −1.67 × 10−27

      D

      –1.6 × 10−19

      1.67 × 10−27

        Choose your answer

        3
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        1 mark

        Neutrinos can interact with protons to create neutrons.

        Which of the following equations shows this process?

        • νe + p → e+ + n

        • νe + p → e– + n

        • ν¯e + p → e+ + n

        • ν¯e + p → e– + n

        Choose your answer