WAEC Physics 2019 Paper

Concept:A vector quantity possesses both magnitude and direction.Explanation:Volume, energy, and speed have only magnitude and no direction.Hence, these quantities are scalars.Momentum has both magnitude and direction, so it is a vector.Mathematically, momentum is expressed as $\vec{p} = m\vec{v}$.Here, $m$ is mass (scalar) and $\vec{v}$ is velocity (vector).Thus, the product $m\vec{v}$ is a vector quantity.Answer:B. Momentum