Work in physics is defined as the force applied to an object multiplied by the distance the object moves in the direction of the force. It is a measure of the energy transferred to an object to make it move.
The unit of work in physics is joule (J). One joule is equal to the work done by a force of one newton (N) acting over a distance of one meter (m).
Work and energy are closely related concepts in physics. The work done on an object is equal to the change in its kinetic energy. This means that work is a means of transferring energy from one object to another.
Work is a measure of the energy transferred to an object, while power is a measure of how quickly that energy is transferred. Power is the rate at which work is done or energy is transferred, and it is measured in watts (W).
Yes, work can be negative in physics. This occurs when the force applied to an object is in the opposite direction of the object's motion. In this case, the work done on the object is negative, and the object loses energy.