Group C Tough materials some mats. = tough not damaged by sudden force, e.g., hitting with hammer mat. not crack or break easily copper (Cu) = v. tough steel = q. tough glass = x uses: copper = nails; steel = car bodies
Unit 6 Is it safe? Exercise C
Group C Computer simulation Topic
comp. simulations show all functions of item
Explanation eng. make comp. mod. of mach/dev.; simulate diff. sits. check res.
Example eng. = check eff. of comp. failures Unit 7 Speak up! Exercise E