WorksheetsForensic Glass Fracture Analysis I
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
When a bullet penetrates a panel of glass, it leaves a crater shaped hole that
a)
is wider on the entrance side
b)
is smaller on the entrance side
c)
Forms randomly
d)
Both B & C
2.
The larger opening of a crater-shaped hole in glass made be the penetration of a projectile indicates
a)
The exit side of the glass
b)
The entrance side of the glass
c)
The projectile was traveling at a low velocity
d)
That a bullet made a openig
3.
A crack in glass that moves outward from the point of impact like spokes on a wheel is called a:
a)
compound fracture
b)
concentric fracture
c)
spoke fracture
d)
radial fracture
4.
Which type of fracture is shown by letter B?
a)
radial
b)
concentric
c)
birefrigent
d)
none of these
5.
___ fractures form first when a bullet penetrates a pane of glass.
a)
radial
b)
concentric
6.
In reference to the diagram, line 1 is known as __________, and line 2 is known as ___________.
a)
Radial and concentric
b)
Radial and directional
c)
Concentric and directional
d)
Concentric and Radial
7.
Glass bends in response to any ________ until it reaches its elastic limit.
a)
fracture
b)
weight
c)
density
d)
force
8.
Backscatter are fragments projected backwards when a glass object breaks.
a)
True
b)
False
9.
Glass will first break on the __________ as the impact.
a)
opposite side
b)
same side
10.
Secondary fractures are ___________.
a)
radial fractures
b)
concentric fractures
c)
conchodial lines
100 %
