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Engineering > Materials > Flashcards

Materials Flashcards

1
Q

BLANK is a type of naturally occurring rock that contains certain elements or minerals.

A

Ore

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2
Q

BLANK is a pure bar of metal.

A

Ingot

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3
Q

BLANK- ability to conduct heat and energy.

A

Conduction

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4
Q

BLANK- easy to shape without breaking.

A

Malleable

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5
Q

BLANK- easy to stretch or deform.

A

Ductile

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6
Q

Examples of common metals

A

Aluminum, Iron, Magnesium and K

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7
Q

BLANK- a metallic material composed of more than one element, with at least one of those elements being a metal.

A

Alloy

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8
Q

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.

A

Free-electron theory of metals

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9
Q

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.

A

Ceramics

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10
Q

Ceramic- BLANK ; Metals-BLANK

A

Crystalized; Random

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11
Q 
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.
A

Polymers

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12
Q

BLANK -elastic properties.

A

Elastomers

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13
Q

BLANK is the process of using sulfur to cross-link and strengthen rubber polymers!

A

Vulcanization

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14
Q

BLANK is the most common plastic in use today. It’s primarily found in packaging materials, like plastic bags and bottles.

A

Polyethylene

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15
Q

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.

A

Polyvinyl chloride

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16
Q

BLANK is moving from positive to negative.

A

Current

17
Q

The degree to which a material can conduct the flow of electricity is called its BLANK.

A

conductivity

18
Q

BLANK - how much a material resists the flow of current. BLANK is measured in ohms.

A

Resistance

19
Q

High conductivity. Such as

A

Au, Ag, Cu, and Al.

20
Q

BLANK - low conductivity. Such as plastic, glass and rubber.

A

Insulator

21
Q

BLANK - It’s name comes from the term “BLANK ”, meaning “Heavy stone” in Swedish.

A

Tung sten

22
Q

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.

A

Tungsten

23
Q

That flow is what we call an electrical current, and it’s measured in units called BLANK.

A

Amperes

24
Q

As the name implies, BLANK are in between materials that conduct electricity and materials that are totally non-conducting. An example is Silicon.

A

semiconductors

25
Q

BLANK - allows you to control current flows in a circuit.

A

Transistors

26
Q

For something to be a BLANK, it must be smaller than 100 nanometers.

A

nanomaterial

Engineering (13 decks)

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