Work involves force and displacement of objects. It can also be defined as a transfer of energy. So to do work, there are some requirements:
- a force must cause displacement
- a force must have the same direction as displacement
The formula of work is force times distance because work is the application of a force over a distance.
(Force: W x D)
The unit of measurement for force is N (Newtons), distance is m (meters), and work is J (Joules).
Examples of work:
1. A woman is pushing a trolley. She transfers force to the bed until it moves, so it is considered as work.
2. Two men are lifting a box from the floor, they are producing force so the box is lifted.
Sources:
http://www.edinformatics.com/math_science/work_energy_power.htm
- a force must cause displacement
- a force must have the same direction as displacement
The formula of work is force times distance because work is the application of a force over a distance.
(Force: W x D)
The unit of measurement for force is N (Newtons), distance is m (meters), and work is J (Joules).
Examples of work:
1. A woman is pushing a trolley. She transfers force to the bed until it moves, so it is considered as work.
2. Two men are lifting a box from the floor, they are producing force so the box is lifted.
http://www.edinformatics.com/math_science/work_energy_power.htm
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