Material Science Exam

Material Science is the study of

• atmospheric gases

• liquids and gases

• solids

• plasma

A material is a good insulator if the

• outer electrons of atoms in the materials are free to move

• outer electrons of atoms in the material are not free to move

• protons can easily change to neutrons

• the nucleus is small

A material that is a good insulator

• has very few protons

• is normally a poor conductor of electricity

• is normally a very good conductor of electricity

• probably has metallic bonding

Ceramics and glass are usually placed in the same general category because

• of similar properties

• they have the same structure

• they are both transparent

• they have metallic bonding

The process by which a crystal begins growing is __________.

• genesis

• initiation

• oxidation

• nucleation

Properties of _________ include silvery solids, luster, malleable, and good conductors.

• metals

• nonmetals

• metalloids

• noble gases

A composite is usually

• just one specific material

• a complex object with thousand of parts

• several materials which enhance each other's properties

• a few parts that are next to each other

The formula for methane, CH₄, indicates each molecule contains

• four carbons and four hydrogens

• one carbon and one hydrogen

• one carbon and four hydrogen

• an undetermined amount of atoms of carbon and hydrogen

The two characteristics of matter are that it has

• electrons and protons

• mass and properties

• volume and is a solid at room temperature

• mass and takes up space

Metals have this type of bonding

• metallic

• ionic

• covalent

• weak intermolecular