Firearms | Toolmarks | Trajectory | Firearm analysis |
---|---|---|---|
What is a Pistol
A handheld firearm
|
What is a toolmark
A tool mark is any impression, cut, gouge, or
abrasion caused by a tool coming into contact with another object |
What is trajectory
Is the flight path of a projectile
|
True or false: Rifle barrels have identical striation markings
false
|
What is a Revolver
A pistol with a revolving cylinder
|
What is a Class Characteristic
are measurable features of a specimen which indicate a restricted group source
|
What is the trajectory calculation
c2 = a2 + b2
|
What is a Ejector
the mechanism on a firearm that throws the cartridge
or fired case from the firearm |
What is Semiautomatic
A pistol with a clip fed mechansim that fires one shot per pull of the trigger
|
What is a Individual Characteristic
Marks produced by the random imperfections
or irregularities of tool surfaces |
What are the forces acting on a bullet once its fired
Forward force of the gunshot and downward force of gravity
|
What is a Extractor
the mechanism by which the cartridge of a fired case
is withdrawn from the firing chamber |
What is Fully-automatic
A firearm with a clip fed mechanism that fires repeatedly for as long as the trigger is held down
|
What is a chisel
Blade tools designed to compress material
when struck |
If the target is _____, there would be less adjustment
closer
|
What is a Magazine/clip
the mechanism that holds the bullets
|
What is a rifle
A firearm that has a long barrel
|
What are the class characteristics of a needle nose plier
Jaw length, jaw width, teeth spacing, jaw lip length, and number of teeth
|
true or false: lasers are used to determine the position of a shooter
true
|
What is the single most important tool for a firearms
examiner
Comparison Microscope
|