Science
Springs.
Definition
Springs are elastic devices that store potential energy when stretched or compressed and exert a restoring force proportional to their displacement from equilibrium. This behavior is described by Hooke's law and is the basis of simple harmonic motion.
Examples
Real-world.
- 1 A pogo stick using a spring to launch the rider upward
- 2 A car's suspension springs absorbing bumps in the road
- 3 A spring scale measuring weight by how far the spring stretches
Key Fact
Hooke's law: F = −kx; Elastic PE = ½kx²