Question

State true or false:
Energy is the capacity to do work.
(A). True
(B). False

Answer 1

Hint – Whenever we do any work then we require energy to do that, which means we can say that energy is the capacity of any physical system to perform work.
We have a statement that “Energy is the capacity to do work” and we need to see whether it’s true or false.

Complete step-by-step solution -
Now, what do we mean by work? So, when a force causes a body to move, work is being done on the object by the force applied on it.
Also, work is nothing else but a measure of energy transferred when a force moves an object through a distance. Work is also defined as the product of the force and distance over which the force is applied. Also, if even after applying the force on any object if the object does not move then the work done is zero. Energy is a key principle in physics, as it allows work to be done. So, when work is done, energy has been transferred from one energy store to another. Energy transferred and work done are both measured in joules (J).
Now, we know that for any kind of work, we need the energy to do that work, for example, running, moving a table from one position to another, and many more daily life works that we perform.
So, we can say that Energy is the capacity of any physical system to perform any sort of work.
Also, when work is done, energy is transferred from one energy store to another and we can say that the energy transferred = Work done.
Hence, the above statement is absolutely true.

Note – Work and energy are two related concepts. Both depend on each other if we don’t have energy then no work, and if we are not doing any work then no energy will be dissipated. So, as mentioned in the solution, that energy is the capacity to do work, and this statement is completely true.