Use a foam block to show your understanding of these forces: squeezing (compression), stretching (tension), bending, sliding (shear), and twisting. Look at a building where you live. Can you find a structure that is being squeezed in compression, stretched in tension, and/or bent? What is an example of a force that would make structures slide or twist? Do you think everything "gives" even if you can't notice it? Why or why not?
