Spring


Arrangement in series: Arrangement in parallel:
Extension = x × number of spring
Stiffness decreases
Spring constant = k/number of spring
Extension = x ÷ number of spring
Stiffness increases
Spring constant = k × number of spring

Factors Affecting the Stiffness of Spring


StifferLess stiff
Material type of spring
(A steel spring is stiffer than a copper spring)
Diameter of wire of spring
(The greater the diameter of the wire, the stiffer the spring)
Diameter of the spring
(The smaller the diameter of spring, the stiffer the spring)
Length of the string
(Shorter spring is stiffer)