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Glass Evidence

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

A hard amorphous, brittle material made by melting silicon dioxide, calcium oxide, and sodium oxide at very high temperatures.

a)

Laminated glass

b)

Tempered glass

c)

Bullet-proof glass

d)

Glass

2.

It is made of two or more panes of glass bonded by a plastic middle layer.

a)

Laminated glass

b)

Tempered glass

c)

Bullet-proof glass

d)

Glass

3.

A glass that has been subjected to extreme temperatures or chemical treatments to improve its strength.

a)

Laminated glass

b)

Tempered glass

c)

Bullet-proof glass

d)

Glass

4.

The ______________ of glass is related to its function.

a)

Color

b)

Thickness

c)

Texture

d)

Weight

5.

A phenomenon where light changes direction as it passes from one medium, such as air, into another medium such as water.

a)

Reflection

b)

Shadowing

c)

Refraction

d)

Bending

6.

________________ lines start at the point of impact and move outward.

a)

Concentric fracture

b)

Bullet holes

c)

Radial Fracture

d)

Secondary fracture

7.

______________ are circles around the point of impact.

a)

Radial fracture

b)

Concentric fracture

c)

Bullet holes

d)

Primary fracture

8.

The angle at which a bullet _____________ window glass can help determine the position of the shooter.

a)

Breaks

b)

Stays

c)

Exits

d)

Enters

9.
Bits of glass can fly backwards.  This is called:
a)
Backtrace
b)
Backspatter
c)
Backflash
d)
Backscatter
10.
Which of the following is the correct formula for calculating the density of glass?
a)
D= m/V
b)
D= V/m
c)
D= m x V
d)
D= 2mV