Units of work
Unit work is the amount of work done when a unit force displaces a body through unit distance in the direction of the force. In International System of units, the absolute unit of work is 'joule'. 1 joule = 1 newton x ..
SI Unit of Work
SI Unit of Work - W = F x s SI unit of F is N and that of s is m [N=Newton] 1Nm is defined as 1 joule. i.e., 1 joule = 1..
SI Unit of Work - W = F x s SI unit of F is N and that of s is m [N=Newton] 1Nm is defined as 1 joule. i.e., 1 joule = 1..SI Unit of Work
One joule is the work done, when the point of application of a force of one Newton moves through a distance of one meter in the direction of forc..
Work and Heat
Work and Heat - In 1798, Count Rumford observed that the amount of heat produced is proportional to the amount of mechanical work done. Later, Dr. James Prescott Joule of Manchester, established a definite relation between the work done and the heat produced. It was sh..
Work and Heat - In 1798, Count Rumford observed that the amount of heat produced is proportional to the amount of mechanical work done. Later, Dr. James Prescott Joule of Manchester, established a definite relation between the work done and the heat produced. It was sh..Work Function
The minimum amount of energy required to emit electrons from a metal surface is called the work function or threshold energy of that metal. The number of electrons emitted per second i.e. the rate of emission depends upon the material of the surface temperature of the surface area..
Work, Energy and Power Summary
Potential energy is the energy possessed by an object by virtue of its position or condition. Kinetic energy = 1/2 mv 2 Potential energy = mgh Law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another. Power is the rate of ..
Potential energy is the energy possessed by an object by virtue of its position or condition. Kinetic energy = 1/2 mv 2 Potential energy = mgh Law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another. Power is the rate of ..Derived Units
Quantity Formula Symbol (SI Unit) Area A=LxB m 2 Volume V=LxBXH m 3 Density D = Mass/Volume kg m - 3 Velocity V = Distance/Time m s -1 Acceleration a = Change in Velocity/Time m -2 Momentum p = mass x velocity Kg ms -1 F..
Work, Energy and Power Introduction-ii
Summary - In physics, the concept of energy plays the role of the money. Work is transferred to or from an object by means of force acting on the body. Energy transferred to the body is positive work and the energy transferred from the body is negative work. ..
Summary - In physics, the concept of energy plays the role of the money. Work is transferred to or from an object by means of force acting on the body. Energy transferred to the body is positive work and the energy transferred from the body is negative work. ..International System of Units
International System of Units - In 1960, the Eleventh General Conference of Weights and Measures recommended an International System of Units (abbreviated as SI) based on the metric system of measurement. When the recommendation was accepted in 1968, it marked the first time in ..
Thus, if one joule of work is done in one second by any agent then its power is said to be one watt.
Kilowatt and megawatt are higher units of power. 1 kilowatt (KW) = 10 3 watts 1 Megawatt (MW) = 10 6 watts Another unit of power is horse power (h.p) 1 h.p. = 746 wat..
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