Question

Consider the quantities, pressure, power, energy, impulse, gravitational potential, electrical charge, temperature, area. Out of these, the only vector quantities are ______.

Options

• Impulse, pressure and area

• Impulse and area

• Area and gravitational potential

• Impulse and pressure

Answer 1

Consider the quantities, pressure, power, energy, impulse, gravitational potential, electrical charge, temperature, area. Out of these, the only vector quantities are impulse and area.

Explanation:

We know that impulse J = F. ∆t = ∆p, where F is force, At is the time duration and Ap is changing in momentum. As ∆p is a vector quantity, hence impulse is also a vector quantity. Sometimes the area can also be treated as the vector direction of the area vector is perpendicular to its plane.