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AQA PHYSICS UNIT 2 REVISION- MATERIALS

DENSITY
Density = mass per unit volume

=m/v. Units= kg/m³
You can measure the density of anunknown substance using methods involving the Eureka Tin, or
similar. Where the water displaced by the substance = volume of substance.




HOOKE'S LAW
Hooke's law states that the…

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The elasticity of a certain solid material is its ability to regain its
natural shape after being deformed.
Stress and Strain is another way of measuring how a material
deforms (what is more used in exams)

The Tensile Stress, = T / A. UNITS = Nm^-2/ Pa. This
measures tension…

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