Fiber and Textile Terminology

What is the definition of an amorphous fiber?

• Regularly shaped fibers

• Fibers with a defined shape

• Fibers composed of a loose arrangement of polymers that are soft, elastic, and absorbing

• Fibers composed of polymers packed side by side.

Crystalline fibers are composed of polymers packed side by side, which makes them ______.

• Soft and elastic

• Stiff and strong

• Loose and absorbing

• Flexible and flat

What is direct transfer in the context of fibers?

• The passing of evidence from a source to a person

• The passing of evidence from a victim to a suspect or vice versa

• The transfer of evidence from one person to another

• The collection of mineral crystals.

A fiber must be at least 100 times longer than wide to be considered a ______.

• Monomer

• Polymer

• Textile

• Fiber

Mineral fibers are a collection of ______.

• Long chains of repeating units

• Mineral crystals formed into a recognizable pattern

• Small molecules that bond to other monomers

• Fibers produced naturally

What is a monomer?

• A large molecule composed of repeating units

• A small molecule that may bond to other monomers to become a polymer

• A fiber produced from a raw material

• A flexible, flat material made by interlacing yarns.

Natural fibers are produced and harvested from ______.

• Synthetic sources

• Animal, plant, or mineral sources

• Mineral crystals

• Long chains of repeating units.

What is a polymer?

• A substance composed of long chains of repeating units

• A small molecule that bonds to other monomers

• A fiber produced from a raw material

• A flexible, flat material made by interlacing yarns.

Secondary transfer involves the transfer of evidence such as a fiber from a source to a person, and then to ______.

• Another source

• Another person

• A mineral fiber

• A polymer

Synthetic fibers are produced from ______.

• Natural sources

• Raw materials such as coal or wood pulp that is spun together in a factory

• Mineral crystals

• Long chains of repeating units.

Tags

NGSS.MS-PS1-3