Scalar And Vector Quantities

Vector Quantities - have both direction and magnitude; scalars just have a magnitude.

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Here are a few examples of vector quantities:

• Displacement (eg. 27 km west)

• Acceleration (eg. 3 ms^2 forwards)

• Force (eg. 4 N downwards)

• Velocity (eg. 7 ms^2 to the left)

• Momentum (eg. 28 kg m/s south)

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You can write the direction of a vector quantity either as an arrow or by describing the direction (eg. south)

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Scalar Quantities - have just a magnitude or size

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Here are a few examples of scalar quantities:

• Mass (eg. 5 kg)

• Energy (eg. 300 J)

• Temperature (eg. 7 ℃)

• Distance (eg. 10 km)

• Speed (eg. 3 m/s)

• Density (eg. 45 kg/m^3)

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