Which of the following is a scalar quantity?
Energy
Energy (E) is defined as the capacity to do work. Work (W = \vec{F} \cdot \vec{d}) is the dot product of two vectors (force \vec{F} and displacement \vec{d}), resulting in a scalar quantity (Work W, which is a form of energy).
Important Questions from Work Power and Energy
Which of the following is an example of potential energy?
Energy in natural systems is transferred by _______.
Choose the best option from the following.
_______ is one of the chemical used to produce Ocean Thermal Energy.
A body of mass 2kg is thrown up vertically with a kinetic energy of 500J. If the acceleration due to gravity is 10 m/s2, the height at which the kinetic energy of the body becomes half of the original values is _____
Arjun has a mass of 50 kg, he eats banana of 1000 calories. If this energy is used up to lift him from the ground, the height to which he can climb is _______. Take g = 10 m/s2 and 1 calories = 4.2 Joule.
