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Work_ Energy_ and Power MCQs for Competitive Exams

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Work_ Energy_ and Power MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

406 MCQs Page 41

Topic Notes: Work_ Energy_ and Power

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Work_ Energy_ and Power MCQs in Physics are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

Attempt the questions page by page, check the correct answers, read the explanations where available, and compare your weak areas with past papers and mock test performance. Consistent MCQ practice improves speed, confidence, and retention for objective exam sections.

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401
Under what condition is the work done by a force on an object considered to be negative?
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402
What is the equivalent power of 1 horsepower in Watts?
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403
Match the energy conversion processes in Column I with their corresponding descriptions in Column II.
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404
Calculate the average power required to lift an object with a mass of 80 kg to a height of 40 m within a duration of 50 seconds (g = 10 m/s²).
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405
If a person pushes against a wall but the wall does not move, how much work is performed on the wall?
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406
A horizontal force of 10 N is applied to a 5 kg object, displacing it by 2 m in the direction of the force. Calculate the work done.
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