Coil Spring, 115 mm

This coil spring is 115 mm long, has a diameter of 11 mm and a spring constant of about 2.1 N/m, making it well suited to investigating elastic oscillations and easy to include in a range of experimental setups. In physics lessons it can be used to demonstrate Hooke's law and the relationship between force and extension, and pupils can measure the oscillation period, calculate the spring constant or analyse the energy conversion between potential and kinetic energy in an oscillating motion. This gives a concrete understanding of elastic forces and harmonic oscillation.