Linked from
The 9 pages that link to Scalar (physics), each with the reason it gives.
Work (physics)Related: Work is a scalar even though force and displacement are vectors.
DisplacementCompared with: Displacement requires direction as well as magnitude.
SpeedNarrower topic: Speed is scalar because its value has no directional component.
Instantaneous velocityCompared with: Unlike speed, velocity includes direction and is not a scalar.