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4th year > FORENSIC BALLISTIC > Flashcards

FORENSIC BALLISTIC Flashcards

1
Q

is a science that deals with the study of the motion of projectiles and the condition affecting the motion

A

Ballistics

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2
Q

is a science because it is based on the systematized body of knowledge, and also the scientific equipment utilized in the crime laboratory for the examination of physical evidence.

A

Ballistics

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3
Q

The mobility or movement of the projectile from the time it leaves the shell. The time it leaves the gun muzzle and until it reach its target or fall in the ground

A

MOTION

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4
Q
  • the forward motion of the bullet out of the shell by the action of the expansive force of gases from a burning gunpowder
A

Direct Motion

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5
Q
  • The action of bullet once it hits the target and subsequently ricocheted. (without any rotation)
A

Translational Motion

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6
Q
  • The action of the bullet passing through a rifled bore firearm which is either twisted to the left or to the right
A

Rotatory Motion

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7
Q

TYPES OF PROJECTILE MOTION

A

DIRECT MOTION
TRANSITIONAL MOTION
ROTATORY MOTION

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8
Q
  • The stillness or the steadiness of the bullet in flight
A

Gyroscopic Action

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9
Q
  • The tumbling of bullet in flight hitting the target sideway
A

Key Hole Shot

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10
Q
  • The instability of the bullet when its fired
A

Yaw

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11
Q

Refers to the metalic or non-metallic object propelled from the firearm.
By means of heated gas, coming from the burning gunpowder.

A

PROJECTILES

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12
Q

The first case of forensic firearm examination to be documented was in

A

1835

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13
Q

HE was when applied ballistic fingerprinting to link a bullet recovered from the victim to the actual culprit

A

Henry H. Goddard

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14
Q

Ballistics was derived from the Greek words
which means

A

Ballo or ballein, to throw.

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15
Q

Is the study of motion and traits of projectiles, while still inside the firearm (Chamber/Barrel) which extends from the breech to the muzzle.

A

INTERIOR / INTERNAL BALLISTICS

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16
Q

Its study or treats of attributes or movement of the projectile after leaving the gun muzzle.
It is extended from the muzzle of the gun to the target or any attributes to the motion of the projectile while it is in its flight and before reaching the target.

A

EXTERIOR / EXTERNAL BALLISTICS

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17
Q

It refers to the noise created at the muzzle point of the gun brought by chemical reaction between the expanded gases and the air outside

A

Muzzle Blast

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18
Q

Energy generated at muzzle point measured in foot-pound. This is attributed to the hot gas liberating at the muzzle pont.

A

Muzzle Energy

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19
Q
  • It is another portion of the recoil action that is characterized as the backward and upward movement takes place before the bullet leaves the muzzle
A

Jump

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20
Q

The parabola-like flight of the projectile from the time it leaves the muzzle until it hits the target
It is also described as the actual curved path taken by a bullet during its flight

A

Trajectory

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21
Q

The imaginary straight distance from the muzzle of the gun to the target.
a

A

Range

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22
Q
  • Refers to the distance within which the shooter or the firer has control of his shot and still capable of inflicting injury
A

Accurate / Effective Range

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23
Q
  • Refers to the farthest distance that a projectile can be propelled from a firearm, up to final vertical drop to the ground
A

Maximum Range

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24
Q

The rate of speed of the bullet (during its flight) per unit of time.
It is usually expressed in feet per second (ft/sec).
It can be measured through the use of chronograph machine.

A

Velocity

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25
Q

are used to measure the velocity of the bullet

A

Chronograph

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26
Q

The resistance encountered by the bullet in flight. which is early experience by the bullet few meters away from the muzzle of the gun.. which reduces the speed of the bullet

A

Air Resistance

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27
Q

Air resistance usually called

A

aerodynamic drag

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28
Q

this is due to air pressure at the head of the bullet.

A

Bow resistance-

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29
Q
  • this is cause by the friction of the air moving along the middle portion of the body of the bullet
A

Skin friction

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30
Q
  • This is due to the pressure and disturbance of the air behind the base of the bullet
A

Base drag

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31
Q

The branch of ballistics that deals with the effects of the projectile’s impact on the target.

A

TERMINAL BALLISTICS

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32
Q

It refers to the size of the bullet grouping on the target.

A

Terminal Accuracy

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33
Q

It is the energy or force of the projectile when it strikes the target.

A

Terminal Energy

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34
Q

This refers to the speed of the bullet upon striking or hitting the target.

A

Terminal Velocity

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35
Q

This refers to the depths of the entry of the bullet on the target

A

Terminal Penetration

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36
Q

The study of motion of the projectile as applied to law

The science of identification by means of the ammunation fired through themScope of Forensic Ballistics

A

FORENSIC BALLISTICS

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37
Q

It refers to the work of investigator in the field (collection, marking, preservation, packing and transmission)

A

Field Investigation

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38
Q

It refers to the work of firearm identintification examiner within laboratory (Obtain test bullets, photomicrography under BCM, preparation of report and etc..)
Specimen submitted

A

Ballistics Technical Examination of the Exhibits

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39
Q

The examiner will go to court to act as an expert witness regarding the report he has made.

A

Legal Proceeding

40
Q

is an instrument used for the propulsion of projectiles by means of the expansive force of gases, coming from the burning gunpowder (FBI Manual or Firearms Identification)

A

Firearm

41
Q

The first handgun were used by ___ around 1200 A.D Developed of firearms, followed the invention of gunpowder in Western Europe, early in 13th Century.

A

Arabs

42
Q

In _____ realized that a spiral grooves etched into the gun barrel, would impart a good spin of rojectiles, thus making its flight more stable and improved its aim.

A

16th century engineers

43
Q

In one of the recorded use of firearms in warfare was an attack in

A

1247Seville, Spain.

44
Q

In an English monk and a scientist, was credited for his invention of gunpowder, which is known as black powder

A

1248 Roger Bacon

45
Q
  • the passage or path of the bullet towards the muzzle end
A

Barrel

46
Q
  • the portion of the firearm that houses the internal parts, serves as the cover of the parts
A

Frame

47
Q
  • serves as chamber and magazines of the cartridge in revolver
A

Cylinder

48
Q
  • use to pull the empty shells from the cylinder simultaneously
A

Extractor

49
Q
  • That mecanism in the firearm that causes the cartridge case to be thrown out of the gun
A

Ejector

50
Q
  • The part or the bore, at the breech to accept the cartridge during the feeding
A

Chamber

51
Q
  • The elevated portion between grooves in the interior surface of the gun barrel
A

Lands

52
Q
  • The depressed portion between the lands in the interior surface of the rifled gun barrel
A

Grooves

53
Q
  • The tip and front portion of the gun or the forward end of the barrel.
A

Muzzle end

54
Q
  • The combination of lands and groves inside the bore of the barrel which causes the bullet to rotate as it passes to the bore
A

Riffling

55
Q
  • That portion where the firing pin is located, that initiates ignition of the priming mixture
A

Hammer

56
Q

Protect the trigger to unnecessary action, design to avoid accidental firing of the firearm

A

Trigger Guard -

56
Q
  • A protruding part on the top of the barrel tip that will align with rear sight during the firing
A

Front sight

56
Q
  • That part of the gun that activates necessary to fire a gun.
A

Trigger

57
Q
  • The rear most part of a gun, with a pair of metallic gun sight
A

Rear sight

58
Q
  • Generally contains a spring and follower to aid feeding
A

Magazine

59
Q

A light, portable form of machine gun, utilizing a pistol size ammunation, having a shoulder stock that may or may not be folded and designed to be fired with both hands.

A

Sub Machine Gun (Grease Gun)

59
Q

A type of firearm that is primary designed for military use. Even in investigation of shooting cases done in a city. It is not usual or common to encounter this type of firearm having been used

A

Machine gun

60
Q
  • A shoulder weapon designed to fire a projectile with more accuracy through a long rifled bore barrel, usually more than 22 inches
A

Rifles

61
Q
  • A form of long gun that appeared in Europe and the Ottoman Empire during the 15th century. An infantryman armed with an arquebus is called an Arquebusier.
A

SMOOTHBORE MATCHLOCK ARGUEBUS

62
Q
  • A short barrel rifle, with its barrel rifle, measuring not longer than 22 inches. It fires a single projectile though a rifle bore either semi-automatic or fully automatic, for every press of the trigger.
A

Carbine

63
Q
  • an ancient smooth bore and muzzle loading military shoulder arm design, to fire a shot or a single round lead ball (The mousquette means “A small Hawk”)
A

Muskets

64
Q
  • A smooth bore and a breech loading shoulder arms designed to fire number of lead pellets or shots in one charge (FBI MANUAL)
A

Shotgun

65
Q
  • The forerunner of Shotgun. a short-barreled large-bored gun with a flared muzzle, used at short range
A

BLUNDERBUSS

66
Q

Which the bore size is same through out the barrel

A

Cylinder bore type

67
Q

It designed with a diminishing or reducing bore diameter type toward the muzzle. It makes the shots travel longer before it spread

A

Choke bored gun

68
Q

a very rear occassions another type of shotgun can be observed to be having rifling only a few inch from its muzzle point

A

Paradox gun

69
Q
  • these are types of firearms that are designed or intended to be fired using one hand
A

Handgun

70
Q

it is a hand operated firearm having a chamber integral with or permanently aligned with the bore which may be self-loading (RA 10591)

A

Pistol

71
Q
  • To be considered as the smallest commercially availabe pistol in world. Patented in 1910 and introduce in 1914
A

KOLIBRE (KOLIBRE OR 2.7MM KOLIBRE CAR PISTOL OR 2.7x9MM KOLIBRE

72
Q

is a type of firearm designed to position cartridge into position for firing with the aid of a rotating cylinder serving as its chamber

A

Revolver

73
Q

=- a type of revolver that needs a manual cocking of the hammer before squeezing the trigger. Ex: Colt Single Action

A

Single Action

74
Q
  • a type of revolver that does not need manual cocking and released the hammer causing a much faster firing. Ex: Magnum Caliber .50
A

Double Action

75
Q
  • Are those types of firearm that propel projectile more than one inch in diamiter
A

Artillery

76
Q
  • Any firearm designed to fire projectile less than one inch diameter
A

Small arms

77
Q
  • Are those firearms, wherein the mechanism is so arranged, that it will fire continuously while the trigger is depressed.
A

Full Automatic Firearm

78
Q
  • Are firearms whose mechanism is so arranged that it requires a fresh pull on the trigger for each shot
A

Semi-automatic

79
Q

It designed for tracing or sending signals or locating enemy troops

A

Flare Gun

80
Q

a tool in which firearm mechanism is attached to prevent easy identification

A

Freakish Gun

81
Q

It refers to all type of home made gun

A

Zip Gun

82
Q

Its generally referring to all gun designed from firing tear gas

A

Gas Gun

83
Q

US Government-made smooth bore gun used in europe during war designed tp fire an automatic colt pistol cartridge caliber .45

A

Liberator

84
Q

are those devices which resembles a gun designed but are generally used for construction

A

Tools

85
Q

It refers to a barbed spear in hunting large fish

A

Harpoons Gun

86
Q
  • Father of Modern Ballistic
A

Col. Calvin H. Goddard

87
Q
  • Founder the great firm Smith an Wesson and pioneered the making of the Breech loading riffles
A

Horace Smith

88
Q
  • An associate or partner of Smith in reovolver making
A

Daniel B. Wesson

89
Q
  • Father of Percussion Ignition
A

Alexander John Forsyth

90
Q
  • Wizard of Modern Firearm and pioneered the breech loading single shot rifled
A

John M. Browning

91
Q
  • Maker of the first known carbine
A

David “Carbine” Williams

92
Q
  • Introduced the first practical revolver
A

Samuel Colt

93
Q
  • An American inventor of Machine Gun or the Maxim gun
A

Sir Hiram Maxim

4th year (7 decks)

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