This site is 100% ad supported. Please add an exception to adblock for this site.

physics ch. 12


undefined, object
copy deck
density formula
mass/volume (kg/m^3 or g/cm^3)
4 principal types of bonding in solids:
Ionic, Covalent, Metallic, & Van de Waals' (weakest)
atomic bonding
atoms tied together by electrical bounding forces
Metals, salts & most minerals (materials of the Earth) are made up of _____
crystals (these are arrangement of atoms very close together)
noncrystalline solids are..
amorphous, meaning atoms & molecules in a solid are distributed randomly (no orderly, repetitive arrangement) i.e. rubber, glass, plastic
weight density formula
[weight, not mass] weight/volume (N/m^3)
property of material where it changes shape from exerted force then springs back to equilibrium
materials that don't go back to original shape after being deformed
Hooke's Law
Force ~ d (amount of stretch or compression)
elastic limit
distance beyond which permanent distortion occurs (& object can't go back to original shape)
tension vs. compression
tension = pulled on/stretched. compression = pushed in/squashed
neutral layer
region where there is on tension or compression
study of how volume & size of an object affect the relationship of weight, strength, and surface area
strength: __ :: weight : _____
area of cross section (cm^2) l volume (cm^3)
Why do smaller foods cook faster?
have more surface area per kg

Deck Info