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MATSE LE 1 Exam| 130 Questions Solved 100% Correct| Verified Answers
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MATSE LE 1 Exam| 130 Questions Solved 100% Correct| Verified Answers
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MATSE LE 1 Exam| 130 Questions Solved 100%Correct| Verified Answers
Strong - ✔✔takes some effort (force) to deform
Ductile - ✔✔can be formed into thin wires without breaking
Malleable - ✔✔can be formed into thin sheets without breaking
Good electrical conductors - ✔✔used as wires
Good thermal conductors - ✔✔used as heat sinks for dissipating heat energy
CERAMICS - ✔✔Compounds between metallic and non-metallic elements
CERAMICS - ✔✔Can be non-metallic elemental solids (NMES) and nonmetals
non-metallic elemental solids - ✔✔nonmetallic; solids under ordinary conditions
Silica (SiO2) - ✔✔main constituents of: sand and glass windows/panels
Pottery - ✔✔mixture of different oxides of silicon and aluminum
Abrasive paper (sandpaper) - ✔✔contains silicon carbide (SiC)
, Stiff and Strong - ✔✔takes some effort (force) to deform or change its shape
Brittle - ✔✔easily breaks; mechanical property
POLYMERS - ✔✔consist of long organic (carbon-containing) molecular chains
POLYMERS - ✔✔Mainly based on carbon, hydrogen, and other nonmetallic elements (viz., O,
N, and Si)
POLYMERS - ✔✔Most chemically complex in terms of composition
POLYMERS - ✔✔A bit "controversial" due to environmental concerns
SEMICONDUCTORS - ✔✔Unique to be electrical behavior
Electrical conductivity - ✔✔are extremely sensitive to minute concentrations of impurity
atoms
SEMICONDUCTORS - ✔✔Have electrical properties intermediate between conductors and
insulators
Silicon - ✔✔is the most dominant"elemental" semiconductor; a silicon"integrated chip" can
be found inpractically any electronic device
Gallium Arsenide - ✔✔is a "compound" semiconductor; widely used for high-efficiency solar
cells and laser diodes
COMPOSITES - ✔✔consist of two or more materials from within the same class
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