Work Done in Physics

Work is the physical quantity that happens when a force causes an item to move or be displaced. In this case, the amount of work done by an object is given as the force applied by the object and the displacement caused in the body by the force is applied. If their is no displacement, there is no work done as per the definitions of physics.

This gives us the idea of following conditions necessary for work done

• Force must be applied
• There must be some amount of displacement

Hence, we can say that work done occurs only when an item is raised or moved, according to the physics definition.

Despite the fact that both force and displacement are vector quantity, it has no direction and hence, work done is a scalar quantity.

Work is expressed in a variety of ways depending on the situation. For example, the work done while compressing gas at a constant temperature is the product of pressure times volume change. It transmits energy to the body, thus the amount of work done on the body is proportional to the increase in the body’s energy. If the applied force is in opposition to the object’s motion, the work done is deemed negative, implying that energy is being removed from the item.

“Despite Working Hard, No Work is Completed”

Consider the following scenario,

A waiter is carrying a tray high over his head with one arm while strolling at a steady speed across a room, despite the fact that you might believe he’s working hard.

However, he is not working in the scientific sense. The waiter is pushing the tray over his head with force, and the tray is going across the room as he goes. However, the waiter’s lifting of the tray has no effect on the tray’s movement. To create a work, there must be a force in the direction of the displacement.

Work is said to be done when a force (push or pull) applied to an object causes a displacement of the object. In our daily life, we do work and get tired. Even if we are doing our work while sitting on a chair, we say we have done a lot of work and got tired. But this is not the work done as per the definitions of physics.

In this article, we will learn the definition of work in terms of physics and the factors on which work depends.