unit 8 ballistics and glass

ballistics is the study of rifles only

• true

• false

A firearm is a weapon, such as a gun, capable of firing a projectile using a confined explosive.

• true

• false

The path of flight of a projectile is its trajectory.

• true

• false

The only way to examine glass fragments at a crime scene is to assemble the fragments and physically fit them together like a jigsaw puzzle.

• true

• false

Gunshot residue on shooters can help investigators identify a suspect.

• true

• false

Studies have shown that no two firearms, even those of the same make and model, will produce the same unique marks on fired bullets and cartridge cases.

• true

• false

If glass cannot be physically pieced together, the control and questioned glass are best compared by their

• Weight and density

• Color and density

• Refractive index and density

• Refractive index and weight

The end of the barrel, where the projectile exits a firearm is the

• barrel

• muzzle

• breech

• lock

Spiral grooves on the inside of the barrel of a gun that are used to  make the bullet spin in the air is called

• safety

• rifling

• magazine

• silencer

The larger opening of a crater-shaped hole in glass made by the penetration of a projectile indicates

• The exit side of the glass

• The entrance side of the glass

• The projectile was traveling at a low velocity

• That a bullet made the opening