Question map
Consider the following physical quantities , energy , power , pressure ,impulse , temperature, gravitational potential . which of the above are vector quantities ?
Explanation
In physics, physical quantities are classified as scalars or vectors based on whether they possess direction. A scalar quantity has only magnitude, while a vector quantity has both magnitude and direction. Among the quantities listed, energy, power, temperature, and gravitational potential are all scalar quantities. Although pressure involves force, it is defined as force per unit area and acts in all directions at a point, making it a scalar quantity in this context. Impulse, however, is defined as the product of force (a vector) and time, or the change in momentum. Since momentum and force are vectors, impulse must also have a specific direction, making it the only vector quantity in the provided list. Therefore, only impulse qualifies as a vector quantity.