Explosives
A chemical or substance used to detect the presence of other substances
What is a reagent?
A gun that is comfortable held and fired with one hand
What is a handgun?
A tool used to compare bullets microscopically for minute details
What is a comparison microscope?
Smoke and particles from the explosion of a firearm, that are expelled upon firing
What is gunshot residue, GSR?
A wound characterized by burn marks inside the gunshot wound itself, can sometimes create a start pattern
What is a contact wound?
A wave of energy given off by an explosive that is over 8000 mps
What is a shockwave?
A classification of firearms that indicates that it needs one "action" before the first shot, then each pull of the trigger will fire one round
What is semi-automatic?
The material that bullets are most commonly made of, due to its cheap manufacturing price and moldability
What is lead?
Locations like entry and exit wounds that can help CSI's determine the trajectory of a buller
What are reference points?
Every action has an equal but opposite reaction
What is newton's third law?
The chemical reaction that occurs in low explosives like bullets and firecrackers
What is deflagration?
A bullet with a cartridge measuring 45 100ths of an inch in diameter
What is 45 caliber?
The study of the processes occurring inside a firearm when a shot is fired, often used to match bullets to the gun they were fired from
What is internal ballistics?
The function performed when you know the angle with which a bullet was fired, and how far the shooter was
What is tangent?
A type of gunshot wound sustained from a distance of over 3 feet away
What is distant wounds?
A presumptive test for explosive residue that involves silica gel plates
What is thin layer chromatography or TLC?
The pin at the base of a cartridge, that when struck, ignites the gunpowder inside the round
What is a primer?
A unique pattern found on bullets, that can be matched to the weapon that fired it
What is a ballistic fingerprint?
A formula used to find the length of one side of a right triangle
What is Pythagorean theorem, A2+B2=C2
Burn marks surrounding a wound, often seen at ranges under 12 inches, that resembles bruising
What is sooting, fouling?
An explosive that is sensitive to heat and movement, making it difficult to use practically
What is a primary high explosive?
A copper coating that covers an entire lead bullet, to increase muzzle velocity and penetration
What is a full metal jacket?
The uncut sections of the bore of a rifle or handgun
What is a land?
The formula used when you know the angle a bullet hit a target, and the horizontal distance that is was fired from, to determine the height
What is tangent(angle) = Opposite/Adjacent
A pattern seen on gunshot wounds from 1-3 feet, characterized by a black peppered look surrounding the wound
What is stippling?