NJIT Physics 203 Earth in Space Exam 2 UPDATED Actual Exam Questions and CORRECT Answers
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Course
NJIT Physics 203
Institution
NJIT Physics 203
NJIT Physics 203 Earth in Space Exam 2
UPDATED Actual Exam Questions and
CORRECT Answers
geology - CORRECT ANSWER- the study of the Earth's geosphere
geosphere - CORRECT ANSWER- the solid part of the earth
mineralogy - CORRECT ANSWER- the study of minerals
NJIT Physics 203 Earth in Space Exam 2
UPDATED Actual Exam Questions and
CORRECT Answers
geology - CORRECT ANSWER✔✔- the study of the Earth's geosphere
geosphere - CORRECT ANSWER✔✔- the solid part of the earth
mineralogy - CORRECT ANSWER✔✔- the study of minerals
mineral - CORRECT ANSWER✔✔- Any naturally occurring solid, inorganic object with a
definite chemical structure
properties of a mineral - CORRECT ANSWER✔✔- color, streak, luster, light transmittance,
hardness, tenacity, cleavage, habit, density, specific gravity, taste, smell, magnetic properties,
chemical reactivity
color (mineral property) - CORRECT ANSWER✔✔- least reliable way to identify a mineral
streak (mineral property) - CORRECT ANSWER✔✔- the color of a mineral in its powder
form is more reliable
light transmittance (mineral property) - CORRECT ANSWER✔✔- transparent: see through
opaque: no light
translucent: kind of see through
hardness (mineral property) - CORRECT ANSWER✔✔- resistance to scratching/rubbing
without breaking
mohs scale - CORRECT ANSWER✔✔- measures hardness of a mineral from 1-10
1: talk (baby powder)
,10: diamond
you can scratch minerals together to see which is harder
pocket knife: 4.5
fingernail: 2.5
tenacity (mineral property) - CORRECT ANSWER✔✔- resistance to breaking/deforming
to measure it you need to break or at least deform the mineral
no scale to measure it
cleavage (mineral property) - CORRECT ANSWER✔✔- crystal geometry of a mineral when
you break it (classified by orientation of the cleavage planes)
habit (mineral property) - CORRECT ANSWER✔✔- the crystal geometry of a material if it
forms without confinement
(most of the time, it is not realized as most minerals form with at least some confinement)
density (mineral property) - CORRECT ANSWER✔✔- = mass/volume
every mineral has its own density
specific gravity (mineral property) - CORRECT ANSWER✔✔- the density of an object in
comparison to the density of the water
= density of substance/density of water
magnetic properties (mineral property) - CORRECT ANSWER✔✔- can be tested if it
attracts metal
silicates - CORRECT ANSWER✔✔- the most common type of mineral
based on SO4, tetrahedral structure
types of silicates in increasing complexity - CORRECT ANSWER✔✔- nesosilicates,
sorosilicates, single chain inosilicates, double chain inosilicates, phyllosilicates, tectosilicates
, types of silicates from darkest to lightest - CORRECT ANSWER✔✔- nesosilicates,
sorosilicates, single chain inosilicates, double chain inosilicates, phyllosilicates, tectosilicates
darker silicates are more dense due to the most amount of metals such as magnesium and iron
lighter silicates are less dense due to the smaller amount of metals
sulfates - CORRECT ANSWER✔✔- mineral group based on sulfur oxygen
carbonates - CORRECT ANSWER✔✔- mineral group based on carbon oxygen
oxides - CORRECT ANSWER✔✔- mineral group based on metals connected with oxygen
- iron (red), aluminum, copper (green)
halides - CORRECT ANSWER✔✔- a mineral group based on the halogens
native elements - CORRECT ANSWER✔✔- based on one atom type only
- pure iron/gold
petrology - CORRECT ANSWER✔✔- the study of rocks
rock - CORRECT ANSWER✔✔- any naturally occurring, inorganic solid that is a
mixture/aggregate of minerals with no definite chemical structure
petrography - CORRECT ANSWER✔✔- the study of the classification of rocks
petrogenesis - CORRECT ANSWER✔✔- the study of how rocks form
types of rocks - CORRECT ANSWER✔✔- igneous, sedimentary, metamorphic
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