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Describing Motion Around Us

CBSE · Class 9 · Science

Flashcards for Describing Motion Around Us — CBSE Class 9 Science. Quick Q&A cards covering key concepts, definitions, and formulas.

114 questions80 flashcards5 concepts

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An illustration of J.J. Thomson's atomic model, depicting an atom as a sphere of uniformly distributed positive charge with electrons (plums) embedded within it.
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80 Flashcards
Card 1Motion in a Straight Line

What is motion in a straight line called?

Answer

Motion in a straight line is called linear motion. Examples include children in a swimming race, a vertically falling ball, a car on a straight highway, and a train on a straight track.

Card 2सीधी रेखा में गति

सीधी रेखा में गति को क्या कहा जाता है?

Answer

सीधी रेखा में गति को रैखिक गति कहा जाता है। उदाहरणों में तैराकी की दौड़ में बच्चे, ऊर्ध्वाधर रूप से गिरती हुई गेंद, सीधी राजमार्ग पर कार, और सीधी पटरी पर ट्रेन शामिल हैं।

Card 3स्थिति का वर्णन

किसी वस्तु की स्थिति का वर्णन कैसे किया जाता है?

Answer

किसी वस्तु की स्थिति का वर्णन एक स्थिर संदर्भ बिंदु लेकर और किसी दिए गए समय क्षण पर उस बिंदु से वस्तु की दूरी और दिशा बताकर किया जाता है।

Card 4Describing Position

How is the position of an object described?

Answer

The position of an object is described by taking a fixed reference point and stating the distance and direction of the object from that point at a given instant of time.

Card 5Time in Motion

What is the difference between an instant of time and a time interval?

Answer

An instant of time is a single reading of a clock at a given time. A time interval is the duration between two instants of time.

Card 6गति में समय

समय क्षण और समय अंतराल में क्या अंतर है?

Answer

समय क्षण किसी दिए गए समय पर घड़ी का एक अकेला पाठ होता है। समय अंतराल दो समय क्षणों के बीच की अवधि होता है।

Card 7दूरी और विस्थापन

विस्थापन क्या है?

Answer

विस्थापन किसी वस्तु की दो दिए गए समय क्षणों के बीच स्थिति में हुआ निवल परिवर्तन है। इसमें परिमाण और दिशा दोनों होते हैं।

Card 8Distance and Displacement

What is displacement?

Answer

Displacement is the net change in the position of an object between two given instants of time. It has both magnitude and direction.

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Describing Motion Around Us covers several key topics that are frequently asked in CBSE Class 9 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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