Engineering Materials - Exam 1
Questions with Correct Answers
4 components of materials science and engineering - ANSWERSProperties,
processing, performance, and structure
Mechanical Property - ANSWERSLoad/Force
Electrical Property - ANSWERSElectric field
Thermal Property - ANSWERSTemperature
Classification of Material - Metals - ANSWERSmetallic bonding, ductile, strong, high
thermal/electrical conductivity, opaque/reflective
Classification of Material - Ceramics - ANSWERSionic bonding, thermally stable,
brittle/glassy/stiff/strong, non-conducting
Classification of Material - Polymers - ANSWERScovalent bonding, soft/ductile/low-
strength/low density. thermal/electrical insulators, translucent
Covalent Bonding (polymers) - ANSWERSsharing of electrons - nonmetals, directional
Ionic Bonding (ceramics) - ANSWERSdonation/acceptance of electrons -
nonmetals/metals, nondirectional
Metallic Bonding (metals) - ANSWERSsea of free electrons - metals/metals,
nondirectional
Magnetic Property - ANSWERSMagnetic Field
Optical Property - ANSWERSElectromagnetic Waves
Deterorative Property - ANSWERSChemical Reactivity
Bonding - Forces - ANSWERSattractive forces are negligible: closer atom gets = larger
attractive force
closer atoms get = larger repulsive force
Bonding - Energy - ANSWERSpotential energy and requires a reference point (=0)
Bonding Properties - Melting Point - ANSWERShigh melting point = high bond strength
Questions with Correct Answers
4 components of materials science and engineering - ANSWERSProperties,
processing, performance, and structure
Mechanical Property - ANSWERSLoad/Force
Electrical Property - ANSWERSElectric field
Thermal Property - ANSWERSTemperature
Classification of Material - Metals - ANSWERSmetallic bonding, ductile, strong, high
thermal/electrical conductivity, opaque/reflective
Classification of Material - Ceramics - ANSWERSionic bonding, thermally stable,
brittle/glassy/stiff/strong, non-conducting
Classification of Material - Polymers - ANSWERScovalent bonding, soft/ductile/low-
strength/low density. thermal/electrical insulators, translucent
Covalent Bonding (polymers) - ANSWERSsharing of electrons - nonmetals, directional
Ionic Bonding (ceramics) - ANSWERSdonation/acceptance of electrons -
nonmetals/metals, nondirectional
Metallic Bonding (metals) - ANSWERSsea of free electrons - metals/metals,
nondirectional
Magnetic Property - ANSWERSMagnetic Field
Optical Property - ANSWERSElectromagnetic Waves
Deterorative Property - ANSWERSChemical Reactivity
Bonding - Forces - ANSWERSattractive forces are negligible: closer atom gets = larger
attractive force
closer atoms get = larger repulsive force
Bonding - Energy - ANSWERSpotential energy and requires a reference point (=0)
Bonding Properties - Melting Point - ANSWERShigh melting point = high bond strength
