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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 40

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.

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391
Which of the following statements regarding kinetic energy is incorrect?
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392
An object of mass 'M' moving at speed 'V' possesses kinetic energy 'K'. If the velocity is doubled, what will be the new kinetic energy?
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393
What is the magnitude of work done on an object when the applied force is parallel to the direction of displacement?
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394
Kinetic energy is defined as the energy an object possesses due to which of its properties?
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395
If the work done on an object is negative, what is the angle between the applied force vector and the displacement vector?
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396
The product of force and displacement in the direction of the force is defined as which physical quantity?
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397
A 50 kg individual climbs 40 stairs, each 15 cm high, in 10 seconds. Calculate the power exerted. (Assume g = 10 m/s²)
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398
A 2m long uniform chain of 4kg mass lies on a table with 60cm hanging over the edge. Calculate the work required to pull the hanging part onto the table.
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399
What term describes the energy stored in a body due to its configuration or position?
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400
How do momentum and kinetic energy change when the velocity of an object is doubled?
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