Ch.12 - Solids and Modern Materials
Back
Problem 1
Two solids are shown below. One is a semiconductor and one is an insulator. Which one is which? Explain your reasoning.
Problem 2
For each of the two-dimensional structures shown here (a) draw the unit cell (i)
(ii)
Problem 3
Shown here are sketches of two processes. Which of the processes refers to the ductility of metals and which refers to malleability of metals? (a)
(b)
- Imagine that you have a metal bar sitting half in the sun and half in the dark. On a sunny day, the part of the metal that has been sitting in the sun feels hot. If you touch the part of the metal bar that has been sitting in the dark, will it feel hot or cold? Justify your answer in terms of thermal conductivity.
Problem 5