MATERIAL SCIENCE EXAM QUESTIONS AND
ANSWERS A COMPLETE SOLUTION LATEST
UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT VERIFIED BEST RATED A+ FOR PASS
_______ are generally inorganic nonmetal materials that do not conduct heat
well and must be heated to very high temperatures before melting. They are
very strong and hard but also very brittle - CORRECT ANSWERS Ceramics
_____________ have good electrical and thermal conductivities, relatively high
strength , high stiffness, ductility or formability and shock resistance. These
materials are particularly useful for structural or load-bearing applications -
CORRECT ANSWERS Metals and Alloys
_________ are typically organic materials. They are usually good electrical and
thermal insulators and generally have very good strength to weight ratios. They
are generally not suitable for high temperature applications - CORRECT
ANSWERS Polymers
Artificial organs, bone replacement parts, cardiovascular stents, orthodontic
braces and other components are made using different plastics, titanium alloys,
and nonmagnetic stainless steels - CORRECT ANSWERS True
Changes in temperature dramatically alter the properties of materials -
CORRECT ANSWERS True
If we load and unload low weight materials thousands of times, small
_____________ will most likely begin to develop - CORRECT ANSWERS Cracks
Metals which have been subject to significant corrosion will eventually
_________ when a load is applied - CORRECT ANSWERS Fail
,MATERIAL SCIENCE EXAM QUESTIONS AND
ANSWERS A COMPLETE SOLUTION LATEST
UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT VERIFIED BEST RATED A+ FOR PASS
A number of factors are taken into account when an engineer chooses a
material to use is a project. These factors can include but are not limited to:
costs, weight, conductivity - CORRECT ANSWERS True
An engineer is designing a plane. There is a choice of aluminum or a composite
material. The composite weighs half that of aluminum. Choosing the composite
will not affect fuel costs. - CORRECT ANSWERS False
Density is the ratio of ___________ - CORRECT ANSWERS Weight/Volume
What is the atomic number of an atom? - CORRECT ANSWERS The number of
protons per atom
Avogadros number is equal to___________ - CORRECT ANSWERS 6.022*10^23
What is the maximum number of electrons with opposing electronic spins
allowed per orbital - CORRECT ANSWERS 2
What is the electron structure for silicon? - CORRECT ANSWERS
1s2,2s2,2p6,3s2,3p2
The Aufbau Principle is a device that helps determine deviations from expected
ordering of the energy levels - CORRECT ANSWERS True
The valence of an atom is the number of electrons in an atom that do not
participate in bonding in chemical reactions - CORRECT ANSWERS False
, MATERIAL SCIENCE EXAM QUESTIONS AND
ANSWERS A COMPLETE SOLUTION LATEST
UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT VERIFIED BEST RATED A+ FOR PASS
As we move down column 1A of the Periodic Table, chemical reactivity
decreases - CORRECT ANSWERS False
Metallic, covalent, and ionic bonds are known as _____________ - CORRECT
ANSWERS Primary bonds
Bonds that are formed by the sharing of valence electrons among two or more
atoms are - CORRECT ANSWERS covalent bonds
Which of the following is not an example of van der Waals interactions? -
CORRECT ANSWERS Stambuli
Heating water to the boiling point breaks the van der Waals bonds and changes
water to steam, but breaking covalent bonds requires much lower
temperatures - CORRECT ANSWERS False
Compounds can be formed from two or more metals. When the difference in
electronegativity between the metals is very large, these compounds may be
bonded by a mixture of metallic and ______________ bonds - CORRECT
ANSWERS ionic
Materials with high bonding energy also have _________________ strength
and ___________ melting temperatures - CORRECT ANSWERS high, high
ANSWERS A COMPLETE SOLUTION LATEST
UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT VERIFIED BEST RATED A+ FOR PASS
_______ are generally inorganic nonmetal materials that do not conduct heat
well and must be heated to very high temperatures before melting. They are
very strong and hard but also very brittle - CORRECT ANSWERS Ceramics
_____________ have good electrical and thermal conductivities, relatively high
strength , high stiffness, ductility or formability and shock resistance. These
materials are particularly useful for structural or load-bearing applications -
CORRECT ANSWERS Metals and Alloys
_________ are typically organic materials. They are usually good electrical and
thermal insulators and generally have very good strength to weight ratios. They
are generally not suitable for high temperature applications - CORRECT
ANSWERS Polymers
Artificial organs, bone replacement parts, cardiovascular stents, orthodontic
braces and other components are made using different plastics, titanium alloys,
and nonmagnetic stainless steels - CORRECT ANSWERS True
Changes in temperature dramatically alter the properties of materials -
CORRECT ANSWERS True
If we load and unload low weight materials thousands of times, small
_____________ will most likely begin to develop - CORRECT ANSWERS Cracks
Metals which have been subject to significant corrosion will eventually
_________ when a load is applied - CORRECT ANSWERS Fail
,MATERIAL SCIENCE EXAM QUESTIONS AND
ANSWERS A COMPLETE SOLUTION LATEST
UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT VERIFIED BEST RATED A+ FOR PASS
A number of factors are taken into account when an engineer chooses a
material to use is a project. These factors can include but are not limited to:
costs, weight, conductivity - CORRECT ANSWERS True
An engineer is designing a plane. There is a choice of aluminum or a composite
material. The composite weighs half that of aluminum. Choosing the composite
will not affect fuel costs. - CORRECT ANSWERS False
Density is the ratio of ___________ - CORRECT ANSWERS Weight/Volume
What is the atomic number of an atom? - CORRECT ANSWERS The number of
protons per atom
Avogadros number is equal to___________ - CORRECT ANSWERS 6.022*10^23
What is the maximum number of electrons with opposing electronic spins
allowed per orbital - CORRECT ANSWERS 2
What is the electron structure for silicon? - CORRECT ANSWERS
1s2,2s2,2p6,3s2,3p2
The Aufbau Principle is a device that helps determine deviations from expected
ordering of the energy levels - CORRECT ANSWERS True
The valence of an atom is the number of electrons in an atom that do not
participate in bonding in chemical reactions - CORRECT ANSWERS False
, MATERIAL SCIENCE EXAM QUESTIONS AND
ANSWERS A COMPLETE SOLUTION LATEST
UPDATED 2024/2025 ALL ANSWERS 100%
CORRECT VERIFIED BEST RATED A+ FOR PASS
As we move down column 1A of the Periodic Table, chemical reactivity
decreases - CORRECT ANSWERS False
Metallic, covalent, and ionic bonds are known as _____________ - CORRECT
ANSWERS Primary bonds
Bonds that are formed by the sharing of valence electrons among two or more
atoms are - CORRECT ANSWERS covalent bonds
Which of the following is not an example of van der Waals interactions? -
CORRECT ANSWERS Stambuli
Heating water to the boiling point breaks the van der Waals bonds and changes
water to steam, but breaking covalent bonds requires much lower
temperatures - CORRECT ANSWERS False
Compounds can be formed from two or more metals. When the difference in
electronegativity between the metals is very large, these compounds may be
bonded by a mixture of metallic and ______________ bonds - CORRECT
ANSWERS ionic
Materials with high bonding energy also have _________________ strength
and ___________ melting temperatures - CORRECT ANSWERS high, high
