Question

Which of the following quantities have both magnitude and direction?

• A. Velocity
• B. Distance
• C. Speed
• D. Temperature

Answer 1

The correct option is A Velocity

A vector is a quantity that has both magnitude and direction. A scalar is a quantity that has only magnitude, but no direction.

Distance is the length of the path traversed by a body, so, it has no direction. It is a scalar quantity. Speed is given by the ratio of distance to time. Hence, speed is also a scalar quantity.

Displacement, however, is the shortest distance between two points, and is also reported with the direction from the initial to the final point. So, it is a vector quantity. Velocity is the ratio of displacement to time, and so, it is also a vector quantity.

Temperature is a scalar quantity. It obviously, does not have a direction.