Types of Fibers list: Synthetic—Rayon, Nylon, Acetate, Acrylic, Spandex, Polyester; Natural—Silk, Cotton, Wool, Mohair, Cashmere. Select all that are synthetic fibers.

Classification of natural fibers according to origin: Vegetable or cellulose; Animal or protein; Mineral. Which category below is not listed as an origin for natural fibers?

Classification of natural fibers according to origin: Vegetable or cellulose; Animal or protein; Mineral. Select all categories that are listed as origins for natural fibers.

Cellulose Fibers descriptions: Cotton—vegetable fiber; strong, tough, flexible, moisture-absorbent, not shape-retentive. Which property is not associated with cotton according to this description?

Cellulose Fibers descriptions: Cotton—vegetable fiber; strong, tough, flexible, moisture-absorbent, not shape-retentive. Select all properties that cotton is described as having.

Cellulose Fibers descriptions: Rayon—chemically altered cellulose; soft, lustrous, versatile. Which statement best describes rayon?

Cellulose Fibers descriptions: Cellulose acetate—cellulose that is chemically altered to create an entirely new compound not found in nature. Which option defines cellulose acetate?

Based on the micrographs, compare the cotton on the left with the rayon on the right by selecting the description that best matches the visual differences.

Synthetic fibers are made of what type of substance?

What does the word polymer mean in this context?

The repeating units that make up a polymer are called what?

By varying the chemical structure of monomers or the way they are joined together, what is the main result for the resulting polymers?

As a result of differences among polymers, how can they be used in forensic analysis?

The image shows several elongated strands viewed under magnification. Based on the content, these strands are most likely made of what?

Using the provided micrographs, identify the differences between the cotton on the left image and the rayon on the right image.

Protein fibers: An insect fiber is spun by a silkworm to make its cocoon; the fiber reflects light and has insulating properties. Which fiber fits this description?

Protein fibers: Wool is an animal fiber coming most often from which source?

Mineral fibers: Which is identified as a natural fiber that has been used in fire‑resistant substances?

Synthetic fibers (made from derivatives of petroleum, coal, and natural gas): Which synthetic fiber is described as the most durable of man‑made fibers and extremely lightweight?

Synthetic fibers: Which fiber is noted for extreme elastic properties?

Fabric production: Most fabrics are composed of individual threads or yarns made of fibers and are constructed by many methods. According to the text, most fabrics are either which of the following?

Which weave pattern is characterized by warp and weft yarns passing under and over each other alternately, creating a checkerboard design?

In a twill weave, how does the warp yarn pass over the weft yarns before going under one?

Which fabric is one of the most common examples of a twill weave?

Which weave pattern has yarn interlacing that is not uniform and creates long floats?

Which statement best describes how knitted fabrics are made?

Silk fibre is obtained from the _____ of the silk moth.

Wool is obtained from the ____ of sheep.

Fibres of _______ resemble that of silk and hence, it is popularly known as ‘artificial silk’.

Which of the following do not provide wool?

Wool- yielding animals bear ____ on their body.

What is the difference between a fibre and a fabric?

Polyester is a natural fibre.

Which of the following in natural Fibre? (Inme se konsa natural fibre hei?)

Which among the following are synthetic fibres?

Choose the material you can stretch.

The most prevalent plant fiber is:

In the examination of fibers, the first and most important step in the examination will be:

Fibers are an excellent source of trace evidence because

Natural fibers can be harvested from

A characteristic of natural fibers is that they

Which of the following observations are used to help identify a specific fiber?

Fibers are considered what kind of evidence? 

What is Loccard's Exchange Principle?

Which of the following is NOT a natural fiber?

the passing of evidence, such as fiber, from victim to suspect or vice versa.

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

a flexible, flat material made by interlacing fibers.

Which of the following are ways to collect fiber evidence?

Check all descriptions appropriate for: Cotton

Which of the following can be used to analyze fibers?

Which of the following properties should be examined when comparing two fibers?