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Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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12 questions

SA-5054-NP4-0011 markL1 FoundationCalculatorFission
Nuclear fission is
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0021 markL1 FoundationCalculatorFusion
The Sun releases energy by
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0031 markL1 FoundationCalculatorFission
A chain reaction is possible in uranium-235 because each fission
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0041 markL1 FoundationCalculatorFission
In a nuclear reactor, the control rods
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0051 markL1 FoundationCalculatorFission
The moderator in a nuclear reactor
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0091 markL1 FoundationCalculatorFission
A major disadvantage of fission power is that
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0121 markL1 FoundationCalculatorFusion
Fusion is not yet used in power stations mainly because
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0062 marksL2 StandardCalculatorFission
 92235U+01n→ 56141Ba+3692Kr+x 01n^{235}_{\ 92}\text{U}+{}^1_0\text{n}\to{}^{141}_{\ 56}\text{Ba}+{}^{92}_{36}\text{Kr}+x\,{}^1_0\text{n}. Find xx, the number of neutrons released.

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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0071 markL2 StandardCalculatorFission
Uranium (Z=92Z=92) splits into barium (Z=56Z=56), another nucleus and some neutrons. Find the proton number of the other nucleus.

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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0081 markL2 StandardCalculatorFusion
Fusion needs extremely high temperatures because
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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0101 markL2 StandardCalculatorFusion
12H+13H→24He+X^2_1\text{H}+{}^3_1\text{H}\to{}^4_2\text{He}+\text{X}. State the nucleon number of particle X.

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Salam Academy Original Practice · Proposed mark scheme
SA-5054-NP4-0112 marksL3 ExamCalculatorFission
Each fission of uranium-235 releases about 3.2×10−113.2\times10^{-11} J. A reactor produces 1.0×1091.0\times10^9 W. Calculate the number of fissions per second, in units of 101910^{19}.

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Salam Academy Original Practice · Proposed mark scheme