Here's why:
* Force: A push or pull that can change an object's motion.
* Distance: The amount of space an object moves.
If either force or distance is zero, no work is done. For example:
* Holding a heavy box: You're applying a force, but the box isn't moving, so no work is being done.
* Pushing against a wall: You're applying a force, but the wall doesn't move, so no work is being done.
The formula for work is:
Work (W) = Force (F) x Distance (d)
