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Stiffness vs. strength
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Questions imageTest that you can differentiate between stiffness and strength by doing the exercise below (click here if you cannot see the entire table).   Use the drop-down boxes to select "High" or "Low" for strength and stiffness for each of the 6 materials.  You can check on your progress at any stage by clicking on "Check my results".

Material Strength Stiffness
Concrete pile
Jelly (jello)
GRP* pole
Biscuit (cookie)
Steel girder
Nylon rope


* Glass reinforced plastic

Materials Teaching Educational Resources
1999 MATTER Project, The University of Liverpool

ESF flagSupported by the European Social Fund under
the Objective One programme for Merseyside