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 »

The principle of the conservation of mechanical energy states that mechanical energy is constant as long as it is in an isolated system and subject only to conservative forces. Mechanical energy itself is the energy that... More »

Enthlapy is a thermodynamic property of a system that expresses the ability to perform non-mechanical work and release heat. Enthalpy is represented as H, while specific enthalpy is represented as h. More »

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The work-energy theorem is a generalized description of motion that states that the work done by the sum of all forces acting on an object is equal to the change in that object's kinetic energy. This principle of work an... More »

Net torque is the sum of all the individual torques acting on an object. Torque measures how much rotation-causing force is acting on an object. If the sum of all the torques is zero, the object is in rotational equilibr... More »

To calculate the net force, or unbalanced force, of a Newtonian object, find the sum of all forces presently acting upon it. These include gravity, friction and other forces depending on the scenario. You need only a few... More »

According to The Physics Classroom, the net force is the vector sum of all the forces acting on an object. Forces, as vectors, are measured in terms of magnitude and direction. More »