Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Ch. 4 Test

Forensics

TermDefinition
rayon is the most commonly used plant fiber (true or false) false
multiple fiber types found at a crime scene decrease the association between the origin of the fibers and the scene (true or false) false
emergency personnel, medical examiners, and investigators must handle clothing carefully o preserve fabrics (true or false) true
fiber evidence is considered physical and class evidence true
polyester and nylon are the most common man-made fibers true
early collection of fibers in an investigation is critical because... within 24 hours about 95% of all fibers may have fallen from a victim or been lost from a crime scene
two methods that can analyze fibers without damaging them are... polarizing light microscopy and infrared spectroscopy
fibers are classified as either... natural fibers or synthetic fibers
all plant fibers share the common polymer that is... cellulose
a fiber that has a flattened hose appearance is... cotton
fiberglass is a fiber form of... glass
synthetic fibers are classified as... regenerated fibers and polymers
name 3 weave pattern names leno, twill, and basket weave
the simplest weave pattern is... tabby
a fiber where surface scales may be visible is... natural
crosswise threads woven back and forth are known as the... weft
flax is the most common stem fiber, and is most commonly found in the textile... linen
Created by: abryant15
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards