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Friction and Applications MCQs for Competitive Exams

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Friction and Applications MCQs for Competitive Exams

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

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Topic Notes: Friction and Applications

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

Friction and Applications 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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11
How does the magnitude of rolling friction compare to that of sliding friction?
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12
What phenomenon occurs at the microscopic contact points between two sliding surfaces?
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13
What is the primary mechanical function of ball bearings in a wheel assembly?
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14
How does an increase in the normal force pressing two sliding surfaces together affect the magnitude of friction?
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15
What is the primary physical cause of rolling friction between a rolling object and a surface?
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16
Which substance is commonly used as a lubricant to reduce friction between sliding metal plates?
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17
Why is walking on ice more challenging than walking on a concrete road?
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18
How can mechanical friction be effectively reduced by changing the type of motion?
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19
How is the work done by the force of friction characterized?
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20
What is the ratio of the limiting friction force to the normal reaction force?
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