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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaPhysics concept

This quantity equals an object's mass multiplied by its velocity.

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ScienceOne small aha
Your new ahaMomentum

Momentum combines an object's mass with its velocity. Source: Momentum ↗

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More from Physics in Plain Sight

A few more worth knowing.

  1. 05A swimmer pushes water backwards and moves forwards: this law pairs equal and opposite forces.RECALL
    Newton's Third Law

    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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  2. 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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  3. 07Relative motion changes a wave's observed frequency in this effect, familiar from a passing siren.RECALL
    Doppler Effect

    The Doppler effect shifts a wave's pitch with relative motion and helps astronomers measure how fast stars move.

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