CAIE A-Level Physics 11.2.3 Quark Structure of Nucleons
Practise explaining that protons and neutrons are composite particles, using uud and udd quark compositions to determine their charges.
- Syllabus
- 2028–2030
- Course
- Physics 9702
- Level
- AS
Exam points
- explain that protons and neutrons are not fundamental particles
- represent proton and neutron quark composition as uud and udd and use it to determine charge
11.2.3—That protons and neutrons are not fundamental particles and describe protons question 1
[Maximum number: 1]
In a simple quark model there are three types of quark. State the composition of the proton and of the neutron in terms of these three quarks.
proton:
neutron:
proton: up up down (and zero strange)
neutron: up down down (and zero strange)
B1
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