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Cambridge International AS & A Level Physics · AS 1 · data analysis

Percentage uncertainty in specific heat capacity

Physical quantities and units · Original GioPhysics question with a detailed, mark-by-mark answer guide.

Demand
demanding
Marks
4
Topics
2
Answer
Complete
Question4 marks

A calculated value has the form Q = AB/C. The percentage uncertainties in A, B and C are 2.25%, 2.5% and 1.26%, respectively. Calculate the percentage uncertainty in Q.

Task interpretation

What a complete response should do

Identify the useful evidence, process it with units, and make only the conclusion the data supports.

Split the problem into linked stages and state why each relationship applies.

Response type
data analysis
Allocation
4 marks
Demand
demanding
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Use your answer and the marking steps—not confidence alone—to choose.