What is Work? Definition, Meaning & Example
The product of force applied to an object and the displacement in the direction of force.
TL;DR: The product of force applied to an object and the displacement in the direction of force.
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Work: The product of force applied to an object and the displacement in the direction of force.
Explanation
Work is done when a force causes an object to move in the direction of the force. Work is calculated as force times distance (W = F × d). No work is done if there is no displacement or if force is perpendicular to displacement. Work is measured in joules. Lifting a weight against gravity does positive work.
Example
Pushing a box across the floor does work if the box moves in the direction of push, but pushing a wall does no work because the wall does not move.
Frequently Asked Questions
What is the formula for work?
Work equals force multiplied by displacement in the direction of force, or W = F × d.
When is no work done?
No work is done if an object does not move or if the force is perpendicular to the displacement.
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