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Scalar

usgb/ˈskeɪlər/Volume
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No DirectionPlay
Scalars have magnitude but no direction, unlike vectors which have both. SlideTemperature, being scalar, does not require directional information.
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Physical PropertiesPlay
In physics, scalar quantities often describe physical properties that are not directional. SlideThe energy in a scalar form just states the amount, not where it's going.
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Scalar OperationsPlay
When used in operations like multiplication, scalars can change the size of another quantity. SlideMultiplying a velocity vector by a scalar changes its speed but not direction.