Ch 18 - Solids

Terms & Objectives

When you complete Chapter 18, you should be able to:

... recognize that some solids have a crystal structure and some don't.
... give evidence for the existence of crystal structure in solids.
... calculate the density of a substance given its mass/weight and volume.
... discuss the meaning of the specific gravity of a substance.
... distinguish between elastic and inelastic solids.
... discuss what happens when a solid exceeds its elastic limit.
... recognize density and elasticity as properties of a substance.
... state Hooke's Law and use it to solve simple numerical problems.
... discuss compression and tension in terms of stresses on a loaded beam.
... discuss scaling in terms of the ratios of size, area, and volume of a substance.
... use scaling arguments to discuss the physical structure of animals and their interaction with their environment.

last update February 2, 2008 by JL Stanbrough