In what ways is the word "work" as used in everyday language the same as it is defined in physics? In what ways is it different? Give examples of both.
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In physics we say that the force is doing the work if, when acting, there is a displacement of the point of application in the direction of the force. For example, when a ball is held above the ground and then dropped, the work done 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).
In everyday life work is said to be done every time there is some effort included. For example if you are pushing against the wall, in everyday language it is said that you did some work, but in physics unless you have moved an object, you did not do any work according to the definition above. So in physics work is this part of work from everyday language that moves an object in the direction of the force.
The word “work” is similar to the one defined in physics, because it just about includes every physical activity that we do and observe in our day-to-day life. Example: Swimming, walking, writing etc are analogous to the fact that a force displacing a body is said to have done work.
We should also not forget the relationship between work and energy, example carrying a load on one head and walking would signify that we are doing work, however, in physics we know that it is not necessary for force acting on a body and displacing it. Actually,in the example stated, the work done is actually zero, as the force applied and the displacement of the object are perpendicular to each other.
Physics definition for work is: The work is a product of distance that object moved and the component of force applied in the direction where the object moved.
Everyday language definition of work is: The work is every activity that someone is doing.
They are the same in a sense that both are some activity by someone or something, but they are different in a sense that in physics there must be a component of applied force in the direction of a moving object and this component of a force applied in a direction of where objects moves multiplied by the distance object makes is what physicist mean when they say work. So physics definition is more narrow, and everyday language definition is more broad.