Scalars are quantities with a magnitude (size) only. Vectors have a magnitude (size) and a direction.
Speed vs Velocity
Speed is a scalar.
Velocity is a vector.
Distance vs Displacement
Distance is a scalar.
Displacement is a vector.
E.g. If an ant travels 6 metres east then 2 metres west:
Mass
Mass is a scalar.
Acceleration
Acceleration is a vector
Force
Force is a vector.
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