Tag
Kinetic Energy
Entries tagged kinetic energy.
3 entries
Concept
Conservation of mechanical energy
When only conservative forces act, the sum of kinetic and potential energy stays fixed, letting you compare two moments of motion without tracing the path between them.
6 min
ConceptElastic and inelastic collisions
Momentum is conserved in every collision between isolated bodies, but kinetic energy is conserved only in the special case of a perfectly elastic collision.
7 min
ConceptKinetic energy
Kinetic energy is the energy a moving object carries by virtue of its motion, equal to one half its mass times the square of its speed, derived directly from the work needed to accelerate it from rest.
7 min