In science, particularly in physics, work is defined as the transfer of energy that occurs when a force is applied to an object and the object moves in the direction of the force.

The formula for work is:

\text{Work (W)} = \text{Force (F)} \times \text{Displacement (d)} \times \cos(\theta)

Where:

• W is the work done,

• F is the magnitude of the applied force,

• d is the displacement of the object,

• θ is the angle between the force and the direction of displacement.

Key Points:

• Work is measured in joules (J) in the SI system.

• If the object does not move, or the force is perpendicular to the displacement, no work is done.

• Positive work means the force aids the motion; negative work means it opposes it.

Example: Pushing a box across a floor involves work, but holding it stationary does not, even if force is applied.