Materials Science Final Exam - Metals, Ceramics, Polymers, and Composites

What is NOT a property of metals?

• Poor conductors of electricity

• Good conductors of heat

• Malleable

• Ductile

What metal development happened between 1955 and 1970 that had a profound (important) impact on human development?

• Superalloys for space travel

• Specialty alloys for improved turbines

• Human body parts can be replaced with high-quality alloys

• Aircraft materials switched to aluminum

Tags

NGSS.MS-PS1-3

What best describes metallic bonding?

• Positive ions donating electrons to negative ions

• Metals sharing electrons in a 'sea' of electrons

• Two negative ions sharing electrons

• None of the above

Which crystal structure has eight atoms at the corners of the unit cell, and one atom centered in each of the faces?

• Simple cubic

• BCC

• HCP

• FCC

A crystal imperfection where there is an empty spot where an atom should be is called a

• Substitution impurity

• Vacancy

• Frenkel defect

• Interstitial impurity

The type of stress caused when the forces applied to an object are parallel to the object’s cross section, commonly referred to as cutting, is called

• Compression

• Torsion

• Fatigue

• Shear

The metal treating process where it is heated to a high temperature and allowed to cool slowly is called

• Annealing

• Tempering

• Quenching

• Controlling

Tags

NGSS.HS-PS3-4

What are traditional ceramics NOT made of

• Clay

• Iron

• Flint

• Feldspar

Ceramics are classified by

• Application

• What they are made of

• What they are used for

• Color

Why was the discovery of fiber optics in 1960 so important?

• Creation of strong, heat resistant material

• Ability to carry large amounts of information with low amounts of energy loss

• Photovoltaic cells

• 'Smart' materials

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-3