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Glass Biweekly Check-in
By Robert Ly
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Last updated about 1 year ago
11 questions
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Density
1
1
1
Section 2
1
1
1
1
1
1
Question 1
1.
CRIME SCENE SAMPLE A
Calculate the density of glass sample A
_______ (round to 3 decimal places)
visibility
View drawing
Question 2
2.
CRIME SCENE SAMPLE B
Calculate the density of glass sample B
_______ (round to 3 decimal places)
visibility
View drawing
Question 3
3.
zoom_in
1
1
Question 6
6.
Question 7
7.
Question 8
8.
Is the following glass class or individual evidence? Explain (1-2 sentences).
Question 9
9.
Question 10
10.
There is an unknown liquid inside of the container. Use Snell's Law to calculate the index of refraction (
n
1
) of the unknown liquid!
_______ round to 3 decimal places
The unknown liquid has a refractive index similar to _______ .
visibility
View drawing
Question 11
11.
Which glass sample has the greater density?
A
B
They both have the same density.
Question 4
4.
Question 5
5.
Glass is generally considered to be _________ evidence.
individual
class
The primary component in all types of glass is
iron oxide (Fe
2
O
3
)
silica (SiO
2
)
lead oxide (PbO)
soda ash (Na
2
O)
What type of glass is shown in the image?
soda lime glass
tempered glass
borosilicate glass (Pyrex)
leaded glass
Sequence the glass fractures in their order of occurrence (earliest to most recent).
D, E, F
E, D, F
E, F, D
F, E, D
Based on density alone, Crime Scene A glass could be ________ glass.
soda lime
borosilicate (Pyrex)
Leaded
Tempered
Alkali Silicate
Based on density alone, Crime Scene B glass could be ________ glass.
soda lime
borosilicate (Pyrex)
Leaded
Tempered
Alkali Silicate
