Kinetic and potential energy are both typically ascribed as forms of mechanical energy and can be interchangeably converted. Potential energy can be converted into kinetic energy and vice versa, but the change is always accompanied by the dissipation of some energy as heat.
Kinetic energy is the energy of a body due to movement, while potential energy is the energy of a body by virtue of its position or state. The kinetic energy of a body depends on its frame of reference. A body matching velocity with its reference frame is stationary in that reference frame but moving in another reference frame. In the frame where the body appears stationary, its kinetic energy is zero. Kinetic energy is proportional to square the velocity and the mass according to the Newtonian laws of motion and must be assigned real, positive values, as neither real mass nor velocity squared can be negative. As the velocity increases at one rate, the kinetic energy increases at square this rate.
Potential energy also depends on the reference frame. Gravitational potential energy is directly proportional to height. Depending on the reference level from which the height is measured, potential energy can be positive, negative or zero.Learn More
The energy of an object in motion is known as kinetic energy. There is more kinetic energy in an object that is heavier and faster. Several types of kinetic energy exist, including vibrational, rotational and translational.Full Answer >
Power is the rate at which work is done, and energy is the capacity for doing work. Energy is often expressed in kilowatt-hours, and power is often expressed in kilowatts.Full Answer >
Elastic energy is the potential energy stored in a material or physical system as the volume or shape is distorted. When objects are stretched or compressed, elastic energy is stored, according to the Physics Classroom.Full Answer >
Gravitational energy is the movement of an object or mass that is caused by the pull of gravity. This is caused on Earth by the strong attraction of all other masses to be drawn back to Earth's center. An example of gravitational energy is water from a river tumbling over a cliff to form a waterfall.Full Answer >