6.1 Stress and strain

1 understand that deformation is caused by tensile or compressive forces (forces and deformations will be
assumed to be in one dimension only)
2 understand and use the terms load, extension, compression and limit of proportionality
3 recall and use Hooke’s law
4 recall and use the formula for the spring constant k = F / x
5 define and use the terms stress, strain and the Young modulus
6 describe an experiment to determine the Young modulus of a metal in the form of a wire