Pendulum types

The pendulum is a system suspended in the field of gravity and performing mechanical oscillations. The oscillations are performed under the influence of gravity, the strength of the elasticity and the force of friction. In many cases, friction can be neglected, and from the strength of elasticity to abstract, replacing them with connections. During the oscillations of the pendulum, constant energy transformation from one species in the other occurs. The kinetic energy of the pendulum turns into potential energy and back.