A-Level PhysicsYear 2021Q8
Turn over 5 8 A motor is used to lift an object as shown. The object is raised through a vertical height of 75 cm at a constant speed of 0.40 m s−1. 0.25 kg motor Which of the following gives the rate of increase of potential energy of the object in watts? A 0.25 × 9.81 × 0.40 B 0.25 × 0.75 C 0.25 × 9.81 × 0.75 D 0.5 × 0.25 × (0.40)2 (Total for Question 8 = 1 mark)
Paper Source:8PH0_01_que_20211009.pdf
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Exam Specification Info
This question is part of the UK A-Level Physics syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
Syllabus levelAdvanced Level (A-Level)
SubjectPhysics
Official MarksVariable (2–6 marks)