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ACES Int'l Secrets & Tips for
Electronics:
Welcome to ACES Int'l Secrets & Tips for Electronics. ACES Int'l wishes to present what we believe to be the most in-depth and enlightening articles we can publish involving the field of Electronics. The articles presented in this section do not necessarily reflect the views or opinions of ACES International Incorporated, nor is ACES Int'l Inc. responsible for any claims resulting from the use or dissemination of these articles.
ELECTRICAL ENERGY In the field of physical science, work is defined as the PRODUCT OF FORCE AND DISPLACEMENT. That is, the force applied to move an object and the distance the object is moved are the factors of work performed. It is important to notice that no work is accomplished unless the force applied causes a change in the position of a stationary object, or a change in the velocity of a moving object. A worker may tire by pushing against a heavy metal box, but unless the box moves, no work will be accomplished. ENERGY In the study of energy and work, we must define energy as THE ABILITY TO DO WORK. In order to perform any kind of work, energy must be expended (converted from one form to another). Energy supplies the required force, or power, whenever any work is accomplished. One form of energy is that which is contained by an object in motion. When a hammer is set in motion in the direction of a nail, it possesses energy of motion. As the hammer strikes the nail, the energy of motion is converted into work as the nail is driven into the wood. The distance the nail is driven into the wood depends on the velocity of the hammer at the time it strikes the nail. Energy contained by an object due to its motion is called KINETIC ENERGY. Assume that the hammer is suspended by a string in a position one meter above a nail. As a result of gravitational attraction, the hammer will experience a force pulling it downward. If the string is suddenly cut, the force of gravity will pull the hammer downward against the nail, driving it into the wood. While the hammer is suspended above the nail it has ability to do work because of its elevated position in the earth's gravitational field. Since energy is the ability to do work, the hammer contains energy.
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