9.1 Stress and Strain
CIE AS Level Physics 9702
Powerpoint including notes, examples, virtual labs and past paper questions.
a) appreciate that deformation is caused by a force and that, in one dimension, the deformation can be tensile or compressive
b) describe the behaviour of springs in terms of load, extension, elastic limit, Hooke’s law and the spring constant (i.e. force per unit extension)
c) define and use the terms stress, strain and the Young modulus
d) describe an experiment to determine the Young modulus of a metal in the form of a wire
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