Physics · Grades 10–12
Energy, work & power · Formula reference 2
Formula reference
Rule and assumptions
Elastic energy in a spring
Convert extension to metres, then square it; the spring is ideal and linear.
E = ½kx²
Further reading and review references
These are reference links, not copied exercises, institutional endorsement or proof of independent review.
Learning preview · independent educational and translation review required. Suggested grades are not official curriculum alignment.