Materials Flashcards
BLANK is a type of naturally occurring rock that contains certain elements or minerals.
Ore
BLANK is a pure bar of metal.
Ingot
BLANK- ability to conduct heat and energy.
Conduction
BLANK- easy to shape without breaking.
Malleable
BLANK- easy to stretch or deform.
Ductile
Examples of common metals
Aluminum, Iron, Magnesium and K
BLANK- a metallic material composed of more than one element, with at least one of those elements being a metal.
Alloy
BLANK- The bonds within metals and metallic materials leave a large number of electrons that aren’t bound to particular atoms and can move from one atom to another.
Free-electron theory of metals
BLANK are compounds that aren’t completely metallic, but they don’t have carbon atoms bonded in a way that would make them organic, either.
Ceramics
Ceramic- BLANK ; Metals-BLANK
Crystalized; Random
BLANK are materials made up of long, repeating chains of tiny molecules known as monomers – a class of molecules that can react with others to form much larger molecules.
Polymers
BLANK -elastic properties.
Elastomers
BLANK is the process of using sulfur to cross-link and strengthen rubber polymers!
Vulcanization
BLANK is the most common plastic in use today. It’s primarily found in packaging materials, like plastic bags and bottles.
Polyethylene
BLANK comes in two main forms: rigid and flexible. Rigid forms of PVC are often used in buildings and construction for things like plastic pipes and the frames for windows and doors.
Polyvinyl chloride
BLANK is moving from positive to negative.
Current
The degree to which a material can conduct the flow of electricity is called its BLANK.
conductivity
BLANK - how much a material resists the flow of current. BLANK is measured in ohms.
Resistance
High conductivity. Such as
Au, Ag, Cu, and Al.
BLANK - low conductivity. Such as plastic, glass and rubber.
Insulator
BLANK - It’s name comes from the term “BLANK ”, meaning “Heavy stone” in Swedish.
Tung sten
BLANK has the highest tensile strength and melting point of all metals. That makes it perfect for drawing into long, thin wires – better known as filaments.
Tungsten
That flow is what we call an electrical current, and it’s measured in units called BLANK.
Amperes
As the name implies, BLANK are in between materials that conduct electricity and materials that are totally non-conducting. An example is Silicon.
semiconductors
