Class 9•CBSE•Science

Newton's Laws of Motion

Science: Physics Foundations · Page 42 · 18 min

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First Law: Inertia

Easy meaning: Jadta (inertia)

Koi object rest mein hai to rest mein hi rehna chahta hai, aur moving hai to moving hi rehna chahta hai — jab tak external force usse change na kare.

Simple example

Football ground par pada rahega. Kick doge tabhi chalega. Chalne ke baad grass aur friction usse dheere-dheere rok dete hain.

Exam-ready line

Newton ka first law inertia ko define karta hai. State change karne ke liye unbalanced external force chahiye.

Teacher voiceSpeed

Interactive 3D Lesson

First law · Inertia

football at rest

No unbalanced force → state stays same

friction

Drag-free visual · labels in SI units

Tap I, II or III to explore the force model. This is an Interactive 3D Lesson, not a generated video.

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