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Laws of Motion — Flashcards

CBSE · Class 11 · Physics

72 flashcards for Laws of Motion (CBSE Class 11 Physics) to test yourself on key terms and facts. Sample: "State Newton's first law of motion."

125 questions72 flashcards6 formulas & key relations5 concepts

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72 Flashcards·
Newton's first lawन्यूटन का प्रथम नियमजड़त्व का नियमLaw of inertiaसंवेगMomentum
Card 1Newton's first law

State Newton's first law of motion.

Answer

Every body continues to be in its state of rest or of uniform motion in a straight line unless compelled by some external force to act otherwise. Meaning: zero net external force means zero accelerati…

Card 2न्यूटन का प्रथम नियम

न्यूटन के गति के प्रथम नियम को लिखिए।

Answer

प्रत्येक वस्तु विराम की अपनी अवस्था में या सरल रेखा में समान वेग वाली गति की अवस्था में बनी रहती है, जब तक कि किसी बाहरी बल द्वारा उसे अन्यथा करने के लिए बाध्य न किया जाए। अर्थ: शून्य शुद्ध बाहरी बल क…

Card 3जड़त्व का नियम

समान गति में चलती वस्तु को चलते रहने के लिए बल की आवश्यकता क्यों नहीं होती?

Answer

बल की आवश्यकता केवल गति को बदलने के लिए होती है, समान गति को बनाए रखने के लिए नहीं। यदि कोई शुद्ध बाहरी बल कार्य नहीं करता, तो त्वरण शून्य होता है, इसलिए वेग स्थिर रहता है। वास्तविक जीवन में घर्षण साम…

Card 4Law of inertia

Why does a moving body not need a force to keep moving in uniform motion?

Answer

A force is needed only to change motion, not to maintain uniform motion. If no net external force acts, acceleration is zero, so velocity stays constant. Friction usually stops bodies in real life, so…

Card 5Newton's first law

A 2 kg body has zero net external force acting on it. What is its acceleration?

Answer

Given: net external force F = 0 N, mass m = 2 kg Formula: F = ma Step 1: 0 N = 2 kg × a Step 2: a = 0 / 2 = 0 m s^-2 Answer: 0 m s^-2…

Card 6न्यूटन का प्रथम नियम

2 kg की एक वस्तु पर शुद्ध बाहरी बल शून्य है। इसका त्वरण क्या है?

Answer

दिया है: शुद्ध बाहरी बल F = 0 N, द्रव्यमान m = 2 kg सूत्र: F = ma चरण 1: 0 N = 2 kg × a चरण 2: a = 0 / 2 = 0 m s^-2 उत्तर: 0 m s^-2…

Card 7संवेग

संवेग की परिभाषा लिखिए।

Answer

संवेग द्रव्यमान और वेग का गुणनफल है: p = mv यह एक सदिश राशि है, इसलिए इसमें परिमाण और दिशा दोनों होते हैं। SI इकाई: kg m s^-1 या N s. उदाहरण: अधिक भारी या अधिक तेज़ वस्तु का संवेग अधिक होता है।…

Card 8Momentum

State the definition of momentum.

Answer

Momentum is the product of mass and velocity: p = mv It is a vector quantity, so it has both magnitude and direction. SI unit: kg m s^-1 or N s. Example: a heavier or faster body has larger momentum.

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Frequently Asked Questions

What are the important topics in Laws of Motion for CBSE Class 11 Physics?
Key topics in Laws of Motion include Aristotle’s Fallacy and the Law of Inertia, Newton’s First Law and Inertia in Daily Situations, Momentum and Newton’s Second Law, Impulse and Force-Time Relation. Study these first, then practise questions on each for Class 11 exams.
How many flashcards are available for Laws of Motion?
There are 72 flashcards for Laws of Motion covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Laws of Motion for Class 11 exams?
Learn the core ideas first, then work through the 125 practice questions on Laws of Motion. Revise definitions regularly and use flashcards for quick recall before the exam.

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