WorksheetsForensics Midterm
Total questions: 45
Worksheet time: 2hrs 33mins
Which of the following properties of glass are considered individual evidence?
Color
Density
Thickness
None of these.
Which of the following can individualized soil evidence?
Artifacts
Pollutants
Unique minerals
All of these.
Choose the correct picture of laminated glass.
What type of glass is used in a car side-window?
Laminated
Tempered
Soda Lime
Leaded Glass
Borosilicate glass is
used in everyday glassware because it is pretty.
used in phone screens because it is tough but flexible.
used in cookware because it is resistant to expanding and contracting during heating and cooling.
used in safety glass because it doesn't break.
What is the correct formula for density?
d = g/mL
d = mL/g
d = cm/g
d = g/cm
What is refractive index?
34.5 degree
The degree to which light bends as it passes from one medium to another.
The amount of matter per unit of volume is in a substance.
None of these.
Which bullet was shot first?
A
B
C
Unable to be determined.
Put the soil particiles in order of size from smallest to largest particle.
I. Sand
II. Clay
III. Silt
II, I, III
III, II, I
I, II, III
II, III, I
What is the density of a piece of glass that has a mass of 5.5 grams and displaces 6 mL of water?
1.10 mL/g
0.92 g/mL
There is not enogh information to determine the density.
What pattern is this?
Tented Arch
Plain Arch
Ulnar Loop
Accidental Whorl
Which type of fingerprint cannot be seen the naked eye?
Patent fingerprint
Latent fingerprint
Visible fingerprint
Plastic fingerprint
Which of the following is a patent print?
Class characteristics of shoe prints include:
manufacturer, type, model, and size
color, material, scent, and scratches on the bottom
depth of tread, position, quantity
All of these
Which of the following is NOT used to analyze cartridge casings?
Firing pin impressions
Bolt markings
Extractions and ejection markings
Rifling impressions
What piece of equipment is used to match up bullet striations from two bullets?
Comparison microscope
Electron microscope
Light microscope
Proton microscope
When collecting ammo/firearms a forensic scientist must....
take lots of pictures and sketch the scene
use an envelope for each item
take notes and label well
all of these are important to the integrity of the evidence
Forensic Scientists compare bullets from...
A Crime Scene bullet only
A test bullet only
A test bullet and a crime scene bullet
Which of these databases are used to hold information about all bullets and castings that have been retrieved from crime scenes or test fires?
NIBIN
SICAR
AFIS
CODIS
To get a known bullet for comparison, investigators test-fire the weapon into
a wood block
a water tank or gel block
soil
None of these choices
A gun that has a rotating cylinder meant to hold multiple cartridges
Pistol
Rifle
Revolver
Shotgun
Using the image, label the part # 3
bullet
primer
case/shell
gun powder
rim
Using the image, label the part # 5
bullet
primer
case/shell
gun powder
rim
Using the image, label the part # 2
shot
shell case
wad
gun powder
Primer
Which of the following best describe the trajectory (vertical and horizontal motion) of a bullet?
The rapidly expanding gasses created by the explosion of gun powder forcibly propel the bullet down the barrel and out of the gun.
Wind resistance or impact with an object slows the bullet's motion.
Gravity will pull the bullet to the ground as it travels.
All of these
Who invented the comparison microscope?
Calvin Goddard
Calvin Gladfry
Calvin Goddsey
Calvin Grand
A bullet hole has a minor axis of 10 and a major axis of 21. What is the angle of impact and the angle of elevation or depression?
0.476 and 0.524 degrees, respectively
28.4 and 61.6 degrees, respectively
61.6 and 28.4 degrees, respectively
0.524 and 0.476 degrees, respectively
Two presumptive tests for gun shot residue are diphenolamine (turns purple in the presence of nitrates) and sodium rhodizonate (turns blue in the presence of lead). True of false: both must be positive for the investigator to presume that gun shot residue is present.
True
False
Using the diagram, label part # 2 of a semi-automatic pistol.
trigger
hammer
muzzle
magazine
Using the diagram, label part # 4 of a semi-automatic pistol.
trigger
hammer
muzzle
magazine
Using the diagram, label part # 4 of a shotgun.
stock
front sight
trigger guard
barrel
The Brady Bill created
the legal age to purchase a firearm.
the 5 day waiting period and background checks for anyone purching a gun.
the right to shoot anyone entering your home unlawfully.
the 2nd amendment
A bullet was found lodged in a wall 89 inches high. The Angle of impact was determined to be 80 degrees. Some casings were found about 153 inches away from the wall. Two suspects are questioned in the shooting. One has a total height of 6'2" and a shoulder height of 62 inches. The other suspect is 5'6" with a shoulder height of 55". Which suspect could be the shooter?
The 6'2" tall suspect.
The 5'6" tall suspect.
It cannot be determined from the evidence collected.
Either one could have shot the gun.
