Topic 40Mathematics (Edexcel)

Elastic Strings and Springs

Elastic Strings and Springs — Edexcel International A-Level Mathematics (Unit 7 / Mechanics 3 (M3)). Covers: Hooke's Law and Elastic Potential Energy.

Practice questions

Hooke's Law and Elastic Potential EnergySign up

understand and use Hooke's law T = λ x / l for an elastic string or spring, where λ is the modulus of elasticity, x is the extension and l the natural length · be able to use the formula EPE = λ x^2 / (2 l) for the elastic potential energy stored in a stretched string or spring, and apply energy conservation to problems involving elastic strings and springs

40 min