#WORK PHYSICS SERIES#
Let me explain what work is though a series of mental images. It's so compact that explaining it in ordinary language makes the half dozen words of the technical definition expand to nearly a hundred words of so-called "natural language". It says as much as it can in as few words as possible. This definition is so compact it's like poetry. So many words and so little said, no? Actually, quite the contrary. I understand that for many of you this is a meaningless definition. Or the force-displacement path integral (for those of you who prefer calculus). Technically, work is the force-displacement product (for those of you who prefer algebra) I think this is mostly due to the fact that the word work has two meanings: the ordinary one of everyday life and the technical one of physics. Not because the right answer is so difficult to know, but rather because the right answer is so difficult to explain, or at least difficult to explain in a way that can be grasped quickly. Hopefully you were given the right answer, but chances are fifty-fifty you were shrugged off. If you were a good student or you just wanted to please your teacher, you probably heard this and said to yourself, "OK, energy is the ability to do work." If you were a really good student with a desire to learn or a really bad student with a desire to point out your teacher's intellectual shortcomings, you should have then asked the next logical question. If so, then the chances are pretty good that you were given a definition of energy as "the ability to do work". Those of you with a bit of formal education were probably given a lesson on energy at some point in your life. If you haven't, then stop reading this and go get yourself some education (or at least some life experience). Somewhere along the line, you should have been introduced to the concept of energy. If this describes you, then you've had some formal science education (good, bad, or ugly).
I consider adolescents (or teenagers, if you prefer) to be proto-adults. This isn't intended to be a children's book and by children, I don't mean the opposite of adults. We can express the four special circumstances regarding the work done by a force, they areĪ.The target audience of this book is people with some amount of education. Let’s look at the video of this simulation, may be better understood 🙂 Play!ġ.1. Α = angle between F and s (degrees or radians) The work done by force F remains the same as the dot product between force and displacement s mathematically, Similarly, to move objects at greater distances, as well as greater works are needed. To move a larger mass greater works are needed. Meanwhile, when the force acts on a moving object, the object can change speed. If the force acts on objects at rest, the object could change its position. As we know, the force can produce change. So, even though the objects are very large work force, but if things do not experience displacement, means there is no work on the thing. Works will only happen if the forces acting on an object produces the displacement on the object. In physics, the work always involves force and displacement. Is this the same as the sense of work in physics?
In everyday terms we say that the work we do to push the wall and to push the chair is the same, because the force we use the same amount, regardless of the object remains stationary or moving. If the force we use to push the chair, turned the chair move. Then, when we push the wall with a certain force, it turns out these walls remain stationary. Then how is the sense of work in physics? For example to achieve the goals of a person doing work in the form of knowledge and learning activities. In everyday life, work terms can be interpreted as all works or human activities to achieve certain goals. Then, what is the work? whether the same with the understanding of work in everyday terms? When the force interacts with the object so that it was experiencing displacement then the force is said to be doing work on the object.
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