Scalar And Vector Quantities
Vector Quantities - have both direction and magnitude; scalars just have a magnitude.
Here are a few examples of vector quantities:
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Displacement (eg. 27 km west)
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Acceleration (eg. 3 ms^2 forwards)
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Force (eg. 4 N downwards)
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Velocity (eg. 7 ms^2 to the left)
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Momentum (eg. 28 kg m/s south)
You can write the direction of a vector quantity either as an arrow or by describing the direction (eg. south)
Scalar Quantities - have just a magnitude or size
Here are a few examples of scalar quantities:
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Mass (eg. 5 kg)
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Energy (eg. 300 J)
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Temperature (eg. 7 ℃)
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Distance (eg. 10 km)
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Speed (eg. 3 m/s)
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Density (eg. 45 kg/m^3)