HSM8 Compression of Springs
Springs are used in engineering to store energy or to provide restoring forces. Both compression and tension (extension) springs may be encountered. The deflection of a spring depends on the load applied to it, an observation enshrined in Hooke's Law (Within the limit of proportionality, the strain is directly proportional to the stress producing it).
Applications of springs are found in spring balances which indicate loads by measuring spring deflections and in car suspensions where they absorb energy caused by wheel vertical movement due to potholes and bumps.