A-LevelPhysicsPhysical quantities and unitsOct/Nov 2023Paper 1 Q31 Mark
A student takes measurements to determine the constant acceleration of a model car moving from rest in a straight line. The measured values with their absolute uncertainties are shown. [Table of quantities, measured values and uncertainties] The student uses the equation s = ½at² to calculate the acceleration of the car. What is the acceleration and its absolute uncertainty?
A(0.11 ± 0.01) m s⁻²
B(0.11 ± 0.02) m s⁻²
C(0.15 ± 0.01) m s⁻²
D(0.15 ± 0.02) m s⁻²
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of physical quantities and units within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep