kinetic energy

Internal energy is one of the most important concepts in thermodynamics. Energy changes in a body sliding with friction. Warming a body increases its internal energy and cooling the body decreases its internal energy. However, what is internal energy..

To cause a displacement of a body controlled by elastic forces, work has to be done. For example, work has to be done in stretching a spring against the elastic forces. This work will be stored in the body as potential energy. When the deforming force is released, this potential ene..

Choose the power function equation which represents the kinetic energy E of a body of mass m , which varies as the square of its velocity v , with a constant of variation k = 1 2 m . => E = 1 3 m v 2 or E = m v 2 or E = 1 2 m v 2 or E = 1 4..

Wave Energy or Sea-wave Energy - Energy from the oceans is also available in the form of oceanic waves or sea-waves. Due to the blowing of wind on the surface of ocean, very fast sea-waves (or water waves) move on its surface. Due to their high speed, sea-waves have a ..

Energy can manifest itself in a number of forms. We have already seen that it can be in the form of mechanical energy, which is subdivided into kinetic energy and potential energy..

Let us see what is actually taking place in the following examples: Steam engine: The coal burns. Heat due to the combustion of coal converts water into steam. The expansive force exerted by the steam on the piston of the engine moves the locomotive. Chemical energy is converted to heat h..

According to this principle, work done by a force in displacing a body, gives the measure of the change in kinetic energy of the bod..

Different Forms of Energy - Energy can manifest itself in a number of forms. We have already seen that it can be in the form of mechanical energy, which is subdivided into kinetic energy and potential energy. Potential energy can..

There are different forms of energy like for example, mechanical energy, heat energy, electrical energy and chemical energy. In this chapter, we shall study about mechanical energy. Kinetic energy and potential ene..

Conversion of gravitational potential energy to kinetic energy: When a body falls from a certain height, its kinetic energy increases. ..