O-LevelPhysicsEnergy & Work5054/12 · Oct/Nov 2018 · Q121 Mark

A motor is used to lift a load 0.50 m vertically, as shown. The load weighs 40 N. The power of the motor is 20 W and the system is 25% efficient. How long does it take to raise the load?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A0.040 s

B0.25 s

C4.0 s

D40 s

✓ Correct answer

C: 4.0 s

Oracle Prep sorts past-paper questions by topic, so you can drill Energy & Work and see which topics are most likely to come up next.

Topic: Energy & Work, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2018 Paper 1 Variant 2, question 12.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content