The temperature in a laboratory drops by over the course of an hour
PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane
Problem
The temperature in a laboratory drops by 5∘C over the course of an hour. How should the quantity ΔT=−5∘C be classified?
(a) Vector, because the negative sign indicates the direction of heat flow.
(b) Neither scalar nor vector, because temperature is an intensive property without direction.
(c) Scalar, because temperature change is fully specified by magnitude and algebraic sign but not spatial direction.
(d) Vector, because it can be represented on a number line.