![]() ![]() It is present in scalar quantity as it does not have any direction. Power is the energy that is consumed per unit of time. Power can be defined as the rate of doing work. Work power or simply power is referred to as a physical concept that includes several meanings, depending on the context and the details available. Heat energy: This energy is produced as a result of the movement of atoms or molecules in solids, liquids, and gasses. Nuclear energy: This is the energy that is released during the process of fission or fusion, especially when it is used to generate electricity. So, the energy that is the form of electrons is known as magnetic energy. Magnetic energy: A magnetic field is generated by electric currents. Mechanical energy: This is referred to as the sum of potential energy and kinetic energy.Įlectrical energy: This energy is derived as a result of the movement that takes place between electrically charged particles. The kinetic energy of a mass increases by four times when the velocity doubles.īesides kinetic and potential energy, some other important types of energy are as follows:Ĭhemical energy: This refers to energy that is released by chemical substances on undergoing a chemical reaction which is further transformed into other substances. If the mass of a body is halved, then the kinetic energy is also halved.ģ. The kinetic energy of a body gets doubled whenever its mass gets doubled.Ģ. Hence from the formula given above, we can state:ġ. While acceleration after the body gains energy, it maintains kinetic energy until its speed changes. It refers to the work that is required to accelerate a body of the given mass differentiating it from its velocity. Kinetic energy refers to the energy of a body due to its movement or motion. The most important types of energy are kinetic energy and potential energy. Energy can be found in many things, and so there are many forms of energy. energy can neither be created nor destroyed, it can only change in its form. It is in scalar quantity and has only magnitude and no direction. In simple words, energy is the ability to work. The capacity of a man that allows him to do work is called energy. Work is only done when the force applied can change the direction of the object or move it. Thus, this shows that work doesn't need to be done whenever a force is applied to an object. But he does lose energy because in his attempt to push the wall he stretches his muscles and thus feels tired. For example, a man tries to move a wall but the wall does not move, hence the work done by the man is zero as there is no displacement produced. ![]() One thing to note here is that force is said to work when it produces a motion in an object. Work W = FS Cos (angle between the displacement and force) If a body is displaced by S while a Force F acts on it, in such a case It is referred to as scalar quantity and the SI unit of work is Joule. Hence, work is measured by the product of displacement and force of a body along with its direction of the force. The direction in which the body moves due to the force applied. For example, when a man climbs a mountain, work is done because while climbing a mountain he is moving against the force of gravity. Work is done when a force produces some kind of motion. When work is done by animals or humans, they get the energy from food and when work is done by machines, they get energy from electricity or fuel. But for work to be done energy is the most important thing as it is the ability to work. ![]() When an object moves towards the direction of the force applied, then work is said to be done. Studying work energy power is important in terms of both acquiring knowledge and getting higher marks in the exam. It exists in various forms like potential, kinetic, chemical, thermal, nuclear, electrical energy and so on. Work is referred to as the displacement of an object when a force (push or pull) is applied to it while energy is referred to as the capacity to do the work. Work and energy are the two sides of a coin as both are interconnected to each other. Work Energy and Power are the most important terms used in Physics that the students learn in school early on. ![]()
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