L-1 force and inertia | newtons law of motion | class 11th | physics

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L-1 force and inertia | newtons law of motion | class 11th | physics Inertia is an object's tendency to resist a change in motion, while force is the push or pull an object exerts on another:
Inertia
Inertia is the tendency of objects to stay in motion or at rest unless acted upon by an outside force. It's a fundamental principle of classical physics, and is described in Newton's first law of motion. Inertia is measured in terms of mass, so more massive objects have more inertia and are harder to move.
Force
Force is the push or pull an object exerts on another, and can have a variety of effects, including moving an object, slowing it down, or changing its shape. Force has both magnitude and direction.
A common demonstration of inertia is to place a teacher's head on top of a stack of books, and then drive a nail into a wooden board placed on top of the books. The books' large mass resists the force of the hammer, so the teacher doesn't feel it

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