Rotational Kinetic Energy Essay

Energy is a property of matter which can be transferred to other matters or transformed into different forms, although it cannot be created or destroyed. A common definition of energy is that it is the ability to do work. Work is the transfer of energy. Work is done on an object when energy is transferred to that object. If one object transfers energy to another object then the first object does work on the second object. Work is when a force is applied over a distance. To calculate work, find the dot product of an object’s displacement and the force applied. In SI units, energy is measured in joules (“Work, Energy and Power”, 2015).

Potential energy is when an object stores energy as the result of its position. A form of this energy is gravitational

The rotational kinetic energy is the kinetic energy due to the rotation of an object. To calculate rotational kinetic energy, multiply an object’s moment of inertia by its angular velocity squared divided by two. The moment of inertia of an object is its resistance to a change in its angular rotation velocity. The angular velocity of an object is the rate of change of angular position of a rotating object. Objects that roll without slipping have part of their energy as translational kinetic and the rest as rotational kinetic. The ratio depends on the moment of inertia of the object that 's rolling (“Rotational Kinetic Energy: Work, Energy, and Power”,

It is the energy of an object due to its motion and/or position. The principle of the conservation of mechanical energy states that the total mechanical energy in a system remains constant if the forces acting are conservative forces. A conservative force is a force which doesn 't change the total mechanical energy such as gravity. A non-conservative is a force that changes the mechanical energy in a system by reducing or adding to it. Kinetic friction and air resistance are common examples (“Conservation of Energy”,