A-LevelPhysicsWork, energy and powerFeb/Mar 2024Paper 1 Q191 Mark
The battery of a small tablet computer is initially uncharged. It is connected to a constant 10W power supply for 2.0 hours to charge the battery. The efficiency of the charging process is 80%. What is the total energy stored in the battery?
A1.6 × 10¹ J
B1.6 × 10³ J
C5.8 × 10⁴ J
D5.8 × 10⁶ J
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of work, energy and power 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...
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