Material ID/History of Materials Flashcard

Front

What is a polymer?

Back

A polymer is a large molecule composed of many repeated subunits (monomers), which can be natural (like rubber) or synthetic (like plastic). They are known for their versatility and can be molded into various shapes.

Front

What are the properties of metals?

Back

Metals are typically good conductors of heat and electricity, malleable, ductile, and have a shiny appearance. They tend to lose electrons and form positive ions.

Front

What is the significance of gold in human history?

Back

Gold was one of the first metals used by humans, valued for its rarity, beauty, and resistance to corrosion, making it ideal for jewelry and currency.

Front

What is conduction?

Back

Conduction is the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or electrical potential.

Front

What is a composite material?

Back

A composite material is made from two or more constituent materials with significantly different physical or chemical properties, resulting in a material with unique characteristics.

Front

What is polyvinyl chloride (PVC)?

Back

PVC is a synthetic polymer that is lightweight, flexible, and resistant to chemicals. It is commonly used in construction, plumbing, and electrical insulation.

Front

What is elasticity?

Back

Elasticity is the ability of a material to return to its original shape after being stretched or compressed.

Front

What is plasticity?

Back

Plasticity is the property of a material to undergo permanent deformation without breaking when subjected to stress.

Front

What is corrosion?

Back

Corrosion is the gradual destruction of materials, usually metals, by chemical reaction with their environment, often involving oxidation.

Front

What are ceramics?

Back

Ceramics are inorganic, non-metallic materials that are typically hard, brittle, and resistant to heat and chemicals, often used in pottery, tiles, and glass.