Consider the following physical quantities :
Energy, power, pressure, impulse, temperature, gravitational potential
Which of the above is / are the vector quantity/quantities ?
[amp_mcq option1=”Impulse only” option2=”Impulse and pressure only” option3=”Impulse, temperature and pressure” option4=”Gravitational potential” correct=”option1″]
This question was previously asked in
UPSC CAPF – 2016
Among the given physical quantities, only Impulse is a vector quantity. A vector quantity has both magnitude and direction. Impulse is defined as the change in momentum of an object, and momentum (mass × velocity) is a vector quantity. Impulse is also equal to the force multiplied by the time interval over which the force acts (when force is constant), and force is a vector.
Identifying whether a physical quantity is a vector or a scalar is a basic concept in physics.