Fiber & Shoeprint
Name 3 natural fiber examples.
Cotton, Silk, Cashmere, Wool, Linen, Bamboo
The distance between the two front tires is called:
Track width
A burglary suspect was wearing gloves, and latent fingerprints are suspected on a doorknob. What substance is commonly used to enhance and visualize latent prints on non-porous surfaces?
Fingerprint powder or powder dusting
How do you write 0.9727 as a percentage?
97.27%
Calculate the final price: You buy a guitar for $488.00 and get 18% off discount.
$400.16
What is the only example of individual evidence for footwear impressions?
Accidental Characteristics - wear marks unique to one shoe
Name and describe a car with a large wheelbase
Any stretch vehicle, Truck, Semi
A fabric fiber is found on a victim's clothing. To collect and preserve this evidence, what method is employed to lift the fiber without damaging it?
Tape lifting or adhesive lifting
Half (1/2) of the marbles in a bag are red. A third (1/3) are white. The other six (6) are blue. How many marbles are in the bag?
36 marbles
Calculate the mean average of the price of chairs:
$48, $55, $67, $38, $79, $89, $87
Name the vocabulary term: The process of comparing shoeprints found at a crime scene to those of a suspect to determine if they match.
Footwear impression analysis or comparison
What type of crime most often includes the use of tools?
Forced entry (break ins)
A crucial piece of evidence, a blood-stained shirt, is collected at a crime scene. Explain the importance of maintaining the integrity of the ____________ to ensure its admissibility in court.
Chain of custody
Simplify the expression:
2(2 + 7q) =
4 + 14q
Maria bought a new smartphone for $250. If the sales tax rate is 8%, how much did she pay in total, including tax?
$270
How does a common approach path help protect evidence?
Evidence can be preserved and not accidentally destroyed by CSI as they move around the scene
Describe the difference between a tool compression versus a tool striation.
Compression: tool is pushed into a surface with force, leaving an indentation
Striation: tool is scraped across a surface leaving a scratch
You collect evidence at the scene. Name 5 things that must be on the evidence tag.
Date/Time, Location, Object name/title, Signature, Case Number
A line segment has 2 points.
Point A (1,2)
Point B (3,5)
Calculate the slope.
3/2
Fernando is mountain climbing with Candice and has just climbed a 36-foot vertical rock face. Candice is standing at the bottom of the cliff, looking up at Fernando. If Candice is 60 feet away from Fernando, how far away from the cliff is Candice standing?
48 ft
Describe conditions that would increase persistence of fibers at a crime scene.
Static electricity, Absence of cleaning, Synthetic fiber, Dry & arid atmosphere
What is mirkosil used for?
A putty-like substance used for creating casts for tool mark impressions.
At a crime scene, investigators discover a suspicious plastic bottle and a torn paper document. What specialized methods would they employ to collect and preserve evidence from each of these materials?
Plastic bagging or packaging for the plastic item and paper envelope or protective covering for the torn document
Solve for u.
-9–4u=-u
u=-3
A car accelerates uniformly from rest to a speed of 30 m/s over a time interval of 8 seconds. Calculate the car's acceleration during this time.
3.75 m/s2