Kinetic energy is either zero or positive, never negative. This is because kinetic energy is defined as half an objects' mass multiplied by the square of its velocity. Since mass is a measure of matter, it can never be n... More »

Potential and kinetic energy are the two types of mechanical energy. An object stores potential energy and expends it as kinetic energy when it is in motion. Potential energy generally involves an object's potential for ... More »

Mechanical energy is the sum of the kinetic and potential energy of an object that gives it the ability to do work. Work is defined as the ability to cause an object to be displaced by another object due to force. More »

Kinetic energy is used by exploiting the motion of an object. For example, the energy of a moving piston in an automotive engine provides transportation. The kinetic energy of moving water powers hydroelectric dams that ... More »

Kinetic friction refers to the frictional force of a moving object. If a force is being applied on a stationary object, friction is considered a static force until movement occurs. More »

Kinetic energy is contained in a moving object, while potential energy exists in a stored form. Potential energy can be changed into kinetic energy. Potential energy is ready for release, while kinetic energy is already ... More »

Kinetic watches transform the kinetic energy of movement into electrical energy, using that energy to run the mechanism of the timepiece, according to Seiko. A weight inside the watch moves whenever you move your wrist, ... More »