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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaPhysics concept

An object's resistance to a change in motion, described by Newton's first law.

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ScienceOne small aha
Your new ahaInertia

Inertia is the tendency to maintain a state of rest or steady straight-line motion. Source: Inertia ↗

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  1. 04This quantity equals an object's mass multiplied by its velocity.RECALL
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    Momentum measures an object's motion as the product of its mass and velocity.

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  2. 05A swimmer pushes water backwards and moves forwards: this law pairs equal and opposite forces.RECALL
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    Newton's third law says every action produces an equal and opposite reaction, as when a swimmer pushes water back to move ahead.

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  3. 06This upward force exerted by a fluid helps immersed objects float.RECALL
    Buoyancy

    Buoyancy is the upward force fluids exert on submerged objects, first explained by Archimedes.

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