Core finding

114 understand the role of electric and magnetic fields in particle… is the most frequently assessed subtopic in Nuclear and Particle Physics, with 37 topic questions and 100 marks across 19 papers. 121 know that in the standard quark-lepton model particles… follows with 34 topic questions and 63 marks. The topic contains 14 subtopics, 278 topic questions and 656 marks in total. Rows count only the parts tagged to that subtopic, keep the same colour in both charts and repeat paper count, tagged marks and year range in the native table.

Topic question count and mark distribution

Subtopics are on the vertical axis and sorted from highest to lowest. Only the parts whose knowledge graph matches a subtopic are counted for it, and percentages are each row's share of the tagged total in that chart. A part tagged to several subtopics is counted in each bar, so the bars are not a partition of the topic total.

Questions by subtopic

question items

114 understand the role of electric and magnetic fields in particle accelerators (linac and cyclotron) and detectors (general principles of ionisation and deflection only) 19 papers

3710.9%

121 know that in the standard quark-lepton model particles can be classified as: • baryons (e.g. neutrons and protons), which are made from three quarks • mesons (e.g. pions), which are made from a quark and an antiquark • leptons (e.g. electrons and neutrinos), which are fundamental particles • photons and that the symmetry of the model predicted the top quark 20 papers

3410.0%

119 be able to use MeV and GeV (energy) and MeV/

c^{2}

, GeV/

c^{2}

(mass) and convert between these and SI units 19 papers

339.7%

115 be able to derive and use the equation

r = \frac{p}{B Q}

for a charged particle in a magnetic field 19 papers

319.1%

112 understand how large-angle alpha particle scattering gives evidence for a nuclear model of the atom and how our understanding of atomic structure has changed over time 20 papers

298.5%

123 understand how to use laws of conservation of charge, baryon number and lepton number to determine whether a particle interaction is possible 19 papers

298.5%

113 understand that electrons are released in the process of thermionic emission and how they can be accelerated by electric and magnetic fields 17 papers

277.9%

116 be able to apply conservation of charge, energy and momentum to interactions between particles and interpret particle tracks 15 papers

277.9%

118 be able to use the equation

Δ E = c^{2} Δ m

in situations involving the creation and annihilation of matter and antimatter particles 18 papers

236.8%

120 understand situations in which the relativistic increase in particle lifetime is significant (use of relativistic equations not required) 15 papers

195.6%

117 understand why high energies are required to investigate the structure of nucleons 14 papers

154.4%

111 understand what is meant by nucleon number (mass number) and proton number (atomic number) 14 papers

144.1%

124 be able to write and interpret particle equations given the relevant particle symbols. 10 papers

123.5%

122 know that every particle has a corresponding antiparticle and be able to use the properties of a particle to deduce the properties of its antiparticle and vice versa 7 papers

102.9%

Marks by subtopic

marks

114 understand the role of electric and magnetic fields in particle accelerators (linac and cyclotron) and detectors (general principles of ionisation and deflection only) 19 papers

10011.8%

115 be able to derive and use the equation

r = \frac{p}{B Q}

for a charged particle in a magnetic field 19 papers

9110.8%

119 be able to use MeV and GeV (energy) and MeV/

c^{2}

, GeV/

c^{2}

(mass) and convert between these and SI units 19 papers

9010.7%

116 be able to apply conservation of charge, energy and momentum to interactions between particles and interpret particle tracks 15 papers

8910.5%

112 understand how large-angle alpha particle scattering gives evidence for a nuclear model of the atom and how our understanding of atomic structure has changed over time 20 papers

769.0%

123 understand how to use laws of conservation of charge, baryon number and lepton number to determine whether a particle interaction is possible 19 papers

688.1%

113 understand that electrons are released in the process of thermionic emission and how they can be accelerated by electric and magnetic fields 17 papers

657.7%

118 be able to use the equation

Δ E = c^{2} Δ m

in situations involving the creation and annihilation of matter and antimatter particles 18 papers

657.7%

121 know that in the standard quark-lepton model particles can be classified as: • baryons (e.g. neutrons and protons), which are made from three quarks • mesons (e.g. pions), which are made from a quark and an antiquark • leptons (e.g. electrons and neutrinos), which are fundamental particles • photons and that the symmetry of the model predicted the top quark 20 papers

637.5%

120 understand situations in which the relativistic increase in particle lifetime is significant (use of relativistic equations not required) 15 papers

455.3%

124 be able to write and interpret particle equations given the relevant particle symbols. 10 papers

283.3%

117 understand why high energies are required to investigate the structure of nucleons 14 papers

273.2%

122 know that every particle has a corresponding antiparticle and be able to use the properties of a particle to deduce the properties of its antiparticle and vice versa 7 papers

202.4%

111 understand what is meant by nucleon number (mass number) and proton number (atomic number) 14 papers

172.0%

Subtopic comparison matrix

Curriculum order is by syllabus number, then alphabetically. Every row links to the matching past-paper question list.

Subtopic	Topic questions	Papers	Marks	Years
111 understand what is meant by nucleon number (mass number) and proton number (atomic number)	14	14	17	2020–2026	Open topic questions
112 understand how large-angle alpha particle scattering gives evidence for a nuclear model of the atom and how our understanding of atomic structure has changed over time	29	20	76	2020–2026	Open topic questions
113 understand that electrons are released in the process of thermionic emission and how they can be accelerated by electric and magnetic fields	27	17	65	2020–2026	Open topic questions
114 understand the role of electric and magnetic fields in particle accelerators (linac and cyclotron) and detectors (general principles of ionisation and deflection only)	37	19	100	2020–2026	Open topic questions
115 be able to derive and use the equation $r = \frac{p}{B Q}$ for a charged particle in a magnetic field	31	19	91	2020–2026	Open topic questions
116 be able to apply conservation of charge, energy and momentum to interactions between particles and interpret particle tracks	27	15	89	2020–2026	Open topic questions
117 understand why high energies are required to investigate the structure of nucleons	15	14	27	2020–2026	Open topic questions
118 be able to use the equation $Δ E = c^{2} Δ m$ in situations involving the creation and annihilation of matter and antimatter particles	23	18	65	2020–2026	Open topic questions
119 be able to use MeV and GeV (energy) and MeV/ $c^{2}$ , GeV/ $c^{2}$ (mass) and convert between these and SI units	33	19	90	2020–2026	Open topic questions
120 understand situations in which the relativistic increase in particle lifetime is significant (use of relativistic equations not required)	19	15	45	2020–2026	Open topic questions
121 know that in the standard quark-lepton model particles can be classified as: • baryons (e.g. neutrons and protons), which are made from three quarks • mesons (e.g. pions), which are made from a quark and an antiquark • leptons (e.g. electrons and neutrinos), which are fundamental particles • photons and that the symmetry of the model predicted the top quark	34	20	63	2020–2026	Open topic questions
122 know that every particle has a corresponding antiparticle and be able to use the properties of a particle to deduce the properties of its antiparticle and vice versa	10	7	20	2021–2026	Open topic questions
123 understand how to use laws of conservation of charge, baryon number and lepton number to determine whether a particle interaction is possible	29	19	68	2020–2026	Open topic questions
124 be able to write and interpret particle equations given the relevant particle symbols.	12	10	28	2020–2026	Open topic questions

Browse every topic question

Topic question rules and edge cases

How many subtopics does Nuclear and Particle Physics contain?: This page lists 14 subtopics tagged to the current syllabus. They are ordered by syllabus number, then alphabetically, and each row opens a page of matching past-paper questions.
How are the subtopic question and mark totals calculated?: A multiple-choice question contributes one item and its marks to every subtopic it is tagged with. A structured question contributes one item per tagged part, and that part’s marks; untagged parts of the same question are not counted here. A part tagged to several subtopics therefore appears under each of them.
Why do some subtopics have no numbered prefix?: Practical-skills statements and some syllabus bullets are unnumbered. Numbered statements come first; unnumbered statements and ties are sorted alphabetically.
Is the LaTeX rendered without JavaScript?: Yes. Subtopics that contain formulas are converted to static KaTeX HTML during the build, and the KaTeX stylesheet is served from the same site.

WPH14 Nuclear and Particle Physics Topic Questions