Interactive Syllabus Extract for

Section 3.4.2 - Materials Bulk properties of solids
Stretching solids Hooke's law

elastic limit,


k as stiffness and spring constant.

Tensile strain and tensile stress.

Elastic strain energy

Breaking stress.

Derivation of stored energy

Description of plastic behaviour, fracture and brittleness linked to force–extension graphs.


= area under force−extension graph


Interpretation of simple stress-strain curves.

Appreciation of energy conservation issues in the context of ethical transport design.

Quantitative and qualitative application of energy conservation to examples involving elastic strain energy and energy to deform.

Spring energy transformed to kinetic and gravitational potential energy. The Young Modulus Use of stress-strain graphs to find the Young modulus.

One simple method of measurement.


Required practical 4: Determination of the Young modulus by a simple method.