Which group contains only scalar quantities?
ATemperature, speed and distance
BVelocity, force and displacement
CDisplacement, distance and force
DSpeed, velocity and temperature
Answer & Solution
Correct answer: A. Temperature, speed and distance
1. A scalar is any quantity that has a magnitude but no direction.
2. A 20 degree Celsius temperature, a 90 km/h speed limit and a distance of 2.0 m are all scalars.
3. Displacement and velocity are vectors, whereas distance and speed are scalars.
4. Force is a vector too, so any group containing force or velocity fails.
_Source: OpenStax College Physics (CC BY 4.0), Ch 2 "Kinematics", section 2.2 Vectors, Scalars, and Coordinate Systems_
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