IB DP Physics Mock Exam HL Paper 2Set 5 - 2025 Syllabus
IB DP Physics Mock Exam HL Paper 2 Set 5
Prepare for the IB DP Physics Mock Exam HL Paper 2 Set 5 with our comprehensive mock exam set 5. Test your knowledge and understanding of key concepts with challenging questions covering all essential topics. Identify areas for improvement and boost your confidence for the real exam
Question
(a) Silicon-30 \((_{14}^{30}\) Si) can be formed from phosphorus-30 \((_{15}^{30}\) P) by a process of beta-plus decay.
(i) Write down the nuclear equation that represents this reaction. [2]
(ii) Sketch the Feynman diagram that represents this reaction. The diagram has been started for you. [3]
(iii) Energy is transferred to a hadron in an attempt to separate its quarks. Describe the implications of quark confinement for this situation. [2]
(b) The Standard Model was accepted by many scientists before the observation of the Higgs boson was made.
Outline why it is important to continue research into a topic once a scientific model has been accepted by the scientific community. [1]
Answer/Explanation
Ans:
a i ++10e + νe
a ii 
a iii quarks cannot be directly observed as free particles/must remain bound to other quarks/quarks cannot be isolated because energy given to nucleon creates other particles rather than freeing quarks/OWTTE
b models need testing/new information may change models/new technology may bring new information/Models can be revised/OWTTE