Question 1

List three materials that can be used to form the matrix that holds the composite material together.

Accepted Answer

Polyester,

Question 2

What is the name of the C60 molecule that resembles an architectural structure called a geodesic dome?

Accepted Answer

A)  Graphene 
B)  Buckminsterfullerene 
C)  Geodene 
D)  Soccerballene 
E)  Buckene 
A)  Graphene 
B)  Buckminsterfullerene 
C)  Geodene 
D)  Soccerballene 
E)  Buckene

Question 3

What are the small molecules that constitute the individual building blocks of polymers called?

Accepted Answer

A)  Prepolymers 
B)  Monomers 
C)  Copolymers 
D)  Mini polymers 
E)  None of these choices is correct. 
A)  Prepolymers 
B)  Monomers 
C)  Copolymers 
D)  Mini polymers 
E)  None of these choices is correct.

Question 4

Discuss modern materials used in medical applications.

Accepted Answer

Replacement joints, dental imp

Question 5

What does LDPE mean?

Accepted Answer

Low-densit

Question 6

Which one of these choices is the general structural formula of an amino acid?

Accepted Answer

A)    
B)  R-CH2-NH2 
C)    
D)    
A)    
B)  R-CH2-NH2 
C)    
D)

Question 7

What name is given to the bonds that make rubber much stronger and more rigid than natural polyisoprene (rubber)?

Accepted Answer

A)  Sulfide bonds 
B)  Cross-links 
C)  Carbon-sulfides 
D)  Bridge bonds 
E)  Brawny bonds 
A)  Sulfide bonds 
B)  Cross-links 
C)  Carbon-sulfides 
D)  Bridge bonds 
E)  Brawny bonds

Question 8

Which of these polymers is used in disposable cups and plates?

Accepted Answer

A)  Polystyrene 
B)  PVC 
C)  Teflon 
D)  Nylon 6,6 
E)  Dacron 
A)  Polystyrene 
B)  PVC 
C)  Teflon 
D)  Nylon 6,6 
E)  Dacron

Question 9

When the following two monomers are combined, which condensation polymer is formed?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 10

Describe the danger associated with traditional dental fillings.

Accepted Answer

Traditional dental fillings we

Question 11

Magnetic levitation is an example of ________ of superconductors below Tc.

Accepted Answer

A)  the Meissner effect 
B)  insulation 
C)  Oxidation 
D)  reduction 
E)  the Kamerlingh-Onnes effect 
A)  the Meissner effect 
B)  insulation 
C)  Oxidation 
D)  reduction 
E)  the Kamerlingh-Onnes effect

Question 12

Which element, or combination of elements, could produce a semiconductor with the following band structure? (CB = conduction band, VB = valence band)

Accepted Answer

A)  Pure Si 
B)  Si and C 
C)  Si and In 
D)  Si and Sb 
E)  Si and F 
A)  Pure Si 
B)  Si and C 
C)  Si and In 
D)  Si and Sb 
E)  Si and F

Question 13

Which type of polymerization reaction involves the bonding of monomer molecules by the movement of electrons from a multiple bond into new single bonds between molecules?

Accepted Answer

A)  Addition polymerization 
B)  Condensation polymerization 
C)  Radical polymerization 
D)  Crosslinking polymerization 
E)  Catalytic polymerization 
A)  Addition polymerization 
B)  Condensation polymerization 
C)  Radical polymerization 
D)  Crosslinking polymerization 
E)  Catalytic polymerization

Question 14

Which polymer is a copolymer of a five-carbon sugar, four different bases (adenine, thymine, guanine, and cytosine), and phosphoric acid?

Accepted Answer

A)  ATP 
B)  ADP 
C)  Kevlar 
D)  DNA 
E)  RNA 
A)  ATP 
B)  ADP 
C)  Kevlar 
D)  DNA 
E)  RNA

Question 15

Which of the following is a natural polymer?

Accepted Answer

A)  Rubber 
B)  Polyester 
C)  Silk 
D)  Rubber & polyester 
E)  Rubber & silk 
A)  Rubber 
B)  Polyester 
C)  Silk 
D)  Rubber & polyester 
E)  Rubber & silk

Question 16

The functional group   found in proteins is called a (an)

Accepted Answer

A)  amide. 
B)  carboxylic acid. 
C)  amine. 
D)  amino acid. 
E)  dipeptide. 
A)  amide. 
B)  carboxylic acid. 
C)  amine. 
D)  amino acid. 
E)  dipeptide.

Question 17

Liquids are anisotropic, because their properties are independent of the axis of testing.

Accepted Answer

A) True 
 B)False

Question 18

List three materials that can be used to give strength to a composite material.

Accepted Answer

Fiberglass

Question 19

An amino acid is a compound that contains at least

Accepted Answer

A)  one amino group and one amide group. 
B)  two amino groups and one carboxylic acid group. 
C)  one hydroxyl group and one methyl group. 
D)  one carboxylic acid group and one amino group. 
E)  one methyl group and one amide group. 
A)  one amino group and one amide group. 
B)  two amino groups and one carboxylic acid group. 
C)  one hydroxyl group and one methyl group. 
D)  one carboxylic acid group and one amino group. 
E)  one methyl group and one amide group.

Question 20

Describe the materials used in joint replacements.

Accepted Answer

Originally the materials were

Exam 12: Modern Materials

List three materials that can be used to form the matrix that holds the composite material together.

What is the name of the C60 molecule that resembles an architectural structure called a geodesic dome?

What are the small molecules that constitute the individual building blocks of polymers called?

Discuss modern materials used in medical applications.

What does LDPE mean?

Which one of these choices is the general structural formula of an amino acid?

What name is given to the bonds that make rubber much stronger and more rigid than natural polyisoprene (rubber)?

Which of these polymers is used in disposable cups and plates?

When the following two monomers are combined, which condensation polymer is formed?

Describe the danger associated with traditional dental fillings.

Magnetic levitation is an example of ________ of superconductors below Tc.

Which element, or combination of elements, could produce a semiconductor with the following band structure? (CB = conduction band, VB = valence band)

Which type of polymerization reaction involves the bonding of monomer molecules by the movement of electrons from a multiple bond into new single bonds between molecules?

Which polymer is a copolymer of a five-carbon sugar, four different bases (adenine, thymine, guanine, and cytosine), and phosphoric acid?

Which of the following is a natural polymer?

The functional group found in proteins is called a (an)

Liquids are anisotropic, because their properties are independent of the axis of testing.

List three materials that can be used to give strength to a composite material.

An amino acid is a compound that contains at least

Describe the materials used in joint replacements.

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

What is the name of the C₆₀ molecule that resembles an architectural structure called a geodesic dome?

Magnetic levitation is an example of ________ of superconductors below T_c.