page_title: Work (physics)
hierarchical_section_title: Work (physics)
context_page_description: In physics, work is the process of energy transfer to the motion of an object via application of a force, often represented as the product of force and displacement. A force is said to do positive work if the force has a component in the direction of the displacement of the point of application. A force does negative work if the force has a component opposite to the direction of the displacement at the point of application of the force.
  For example, when a ball is held above the ground and then dropped, the work done by the gravitational force on the ball as it falls is equal to the weight of the ball multiplied by the distance to the ground. When the force F is constant and the angle between the force and the displacement s is θ, then the work done is given by W = Fs cosθ.
  Work transfers energy from one place to another, or one form to another.
  The SI unit of work is the joule.
context_section_description: In physics, work is the process of energy transfer to the motion of an object via application of a force, often represented as the product of force and displacement. A force is said to do positive work if (when applied) the force has a component in the direction of the displacement of the point of application. A force does negative work if the force has a component opposite to the direction of the displacement at the point of application of the force.
  For example, when a ball is held above the ground and then dropped, the work done by the gravitational force on the ball as it falls is equal to the weight of the ball (a force) multiplied by the distance to the ground (a displacement). When the force F is constant and the angle between the force and the displacement s is θ, then the work done is given by W = Fs cosθ.
  Work transfers energy from one place to another, or one form to another.
  The SI unit of work is the joule (J).
caption: A baseball pitcher does positive work on the ball by applying a force to it over the distance it moves while in his grip.
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