ESAT (Engineering and Science Admissions Test) · Physics
Work, energy and power
3 practice questions, each with the answer and an explanation.
Practise Work, energy and power now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 3 questions
- A force of pulls a sledge along the ground. The force acts at above the horizontal. How much work does it do?
- A motor takes of electrical power and produces of useful mechanical power. What is its efficiency?
- A lift motor raises a lift by in at constant speed (take ). What useful power does it deliver?
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