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AQA A Level Physics (7408/1) Paper 1 - Core Content

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Ace your AQA A Level Physics (7408/1) Paper 1 exam with this definitive 2026/2027 mastery guide. It features verified exam-style questions and answers covering the core content: Measurements, Particles, Waves, Mechanics, Materials, and Electricity. Your key to mastering foundational physics principles and achieving a top grade.

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AQA A Level Physics (7408/1) Paper 1
- Core Content
Diagnostic Quiz: 2026/2027 Specification


Section A: Mechanics and Materials

Q1:
A student measures the mass of a metal cube as 50.0±0.1g and the length of one side as
2.00±0.01cm . She calculates the density. What is the percentage uncertainty in her calculated
density?
A. 0.2%
B. 1.7% [CORRECT]
C. 1.8%


D. 3.2%



Rationale: The correct answer is B. For multiplication and division, percentage uncertainties add.

For a cube, volume V∝L



3




, so the percentage uncertainty in volume is 3×



2.00



0.01

, ×100%=1.5% . The percentage uncertainty in mass is


50.0



0.1




×100%=0.2% . Total percentage uncertainty in density ρ= m/V is 1.5%+0.2%=1.7% . Distractor
A is incorrect because it only considers the mass uncertainty. Distractor C incorrectly adds the
length uncertainty linearly (0.5%+0.2% ) rather than accounting for the power of 3. Distractor D

incorrectly triples the combined linear uncertainty (3×(0.5%+0.2%) ).


Q2:


A ball is thrown vertically upwards with an initial speed of 12m s



−1




. What is the time taken to reach a point 5.0m above the projection point on its way down?

(g =9.81m s



−2


)
A. 0.53s
B. 1.2s
C. 1.9s [CORRECT]


D. 2.4s

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