Here's why:
* Force: A push or pull that can change an object's motion.
* Distance: The amount of space between two points.
Work is done when a force causes an object to move a certain distance. It is calculated by multiplying the force applied by the distance the object moves in the direction of the force.
Formula for work:
Work (W) = Force (F) × Distance (d)
Units of work:
* Joules (J) in the International System of Units (SI)
* Foot-pounds (ft-lb) in the Imperial system
Example:
Imagine lifting a box 1 meter off the ground. You are applying a force to counteract gravity. The work you do is equal to the force you applied multiplied by the distance the box moved (1 meter).
Important note: For work to be done, the force must cause movement. If you push against a wall that doesn't move, you are applying force, but you are not doing any work.