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AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
Revision Notes - Materials


Materials

Elasticity ­ An elastic material returns to its original size and shape when the forces which is
stretching or compressing it is removed.
Yield Point ­ Beyond the elastic limit, a point is reached which…

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AQA AS Physics A
PHYA2 ­ Mechanics, Materials and Waves
Revision Notes - Materials



Unit = Pa / Pascal or Nm-2 / Newton's per Metres Squared

Young's Modulus can be calculated from the force ­ extension graph:

l
E = gradient × A


Density

The density, , of a material…

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