WorksheetsForensics Glass
Total questions: 15
Worksheet time: 15mins
What type of fracture is this?
Becke
Conchodial
Concentric
Radial
What will NOT be visible if a glass and a liquid has the same refractive index?
Conchoidal Lines
Becke Lines
Fracture Lines
Radial Lines
What is the 1st step for handling glass at a crime scene?
Identify and photograph any glass samples before moving them.
Collect the largest fragments that can be reasonably collected
Identify the outside and inside surface of any glass
If multiple panes are involved, make a diagram
What is the 2nd step for handling glass at a crime scene?
Note trace evidence such as skin, hair, blood, or fibers.
Collect the largest fragments that can be reasonably collected
Identify the outside and inside surface of any glass
If multiple panes are involved, make a diagram
A detective at a crime scene finds a visible fingerprint on a glass surface that can be photographed. This type of fingerprint is classified as ___________.
a plastic print
a patent print
a latent print
an arch
a whorl
What property of glass is most commonly used in forensic analysis to match fragments from a crime scene?
Refractive index
Color
Thickness
Weight
Which of the following is a method used to determine the refractive index of glass in forensic science?
Density gradient method
Becke line method
Chromatography
Spectroscopy
When examining glass fractures, what type of lines are formed on the side opposite to the force applied?
Radial lines
Conchoidal lines
Becke lines
Concentric lines
What is the primary reason for using glass density measurements in forensic investigations?
To determine the age of the glass
To identify the manufacturer
To match glass fragments to a source
To assess the glass's chemical composition
In forensic glass analysis, what does the term 'conchoidal fracture' refer to?
A smooth, curved fracture surface
A jagged, irregular fracture surface
A fracture that follows the grain of the glass
A fracture that occurs at a right angle
Which of the following is NOT a common tool used in the forensic analysis of glass?
Microscope
Spectrometer
Gas chromatograph
Refractometer
What is the significance of the Becke line in forensic glass analysis?
It helps determine the glass's color
It indicates the glass's refractive index
It shows the glass's thickness
It reveals the glass's chemical composition
How can the sequence of impacts on a glass surface be determined in forensic investigations?
By analyzing the size of the fragments
By examining the radial and concentric fracture patterns
By measuring the glass's density
By identifying the glass's color
What type of glass is most likely to produce sharp, dangerous fragments when broken?
Tempered glass
Laminated glass
Annealed glass
Bulletproof glass
Which of the following is a real-world application of forensic glass analysis?
Determining the cause of a car accident
Identifying the source of a glass fragment found at a crime scene
Measuring the thermal resistance of glass
Assessing the environmental impact of glass production
