Mechanical Energy Conservation

Definition

Mechanical energy conservation refers to the principle that states that in a closed system with no external forces acting upon it, mechanical energy remains constant. This means that the sum of kinetic energy and potential energy within the system remains unchanged.

Analogy

Think of a roller coaster ride where there are no frictional forces or air resistance. As the coaster goes up and down hills, its total mechanical energy (kinetic + potential) stays constant throughout the entire ride.

Related terms

Kinetic Energy: Kinetic energy is the energy possessed by an object due to its motion. It depends on both mass and velocity.

Potential Energy: Potential energy is stored energy that an object possesses due to its position relative to other objects. Examples include gravitational potential energy and elastic potential energy.

Conservation Laws: Conservation laws state that certain properties (such as mechanical energy) remain constant in isolated systems unless acted upon by external forces.