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- 1. Multiple ChoiceGlass which is strengthened by introducing stress through rapid heating and cooling of it's surface.Soda Lime GlassLeaded GlassTempered GlassLaminated Glass
- 2. Multiple ChoiceWhen a bullet penetrates a panel of glass, it leaves a crater shaped hole thatis wider on the entrance sideis smaller on the entrance sideForms randomlyBoth B & C
- 3. Multiple ChoiceThe fracture pattern of glass usually hasRadial and concentric linesConcentric linesRadial linesDirectional lines
- 4. Multiple Choice
In reference to the diagram, line 1 is known as __________, and line 2 is known as ___________.Radial and concentricRadial and directionalConcentric and directionalConcentric and Radial - 5. Multiple ChoiceWhich glass break was made first?AB
- 6. Multiple ChoiceWhat type of fracture is this?BeckeConchodialConcentricRadial
- 7. Multiple ChoiceWhat will NOT be visible if a glass and a liquid has the same refractive index?Conchoidal LinesBecke LinesFracture LinesRadial Lines
- 8. Multiple ChoiceWhat type of fracture forms on the same side as the impact?RadialBeckeConcentricConchodial
- 9. Multiple ChoiceWhich type of glass fractured this way?tempered (auto)windowcrystalPyrex
- 10. Multiple ChoiceBecause glass is a solid with random arrangement of motionless atoms, it is called:plasmaobtuseamorphousfrozen
- 11. Multiple ChoiceWhich of these is part of using the 3R rule to determine the direction of impact?radial crackright anglereverse side of forceall of these
- 12. Multiple ChoiceA crack in glass that moves outward from the point of impact like spokes on a wheel is called a:compound fractureconcentric fracturespoke fractureradial fracture
- 13. Multiple ChoiceThe bright halo that appears near the border of a glass particle that is immersed in a liquid of a different refractive index is called the:border linerefractive lineBecke lineimmersion line
- 14. Multiple ChoiceThe ratio of velocity of light in a vacuum to that in another medium (like water) is called the:birefringencerefractive indexrefractive quotientcomparison index
- 15. Multiple ChoiceBending of light waves as they change velocity is called:reflectionmirroringrefractiontransversing
- 16. Multiple ChoiceWhat is the main ingredient in ordinary glass?(a) soda(b) lime(c) metal oxides(d) sand
- 17. Multiple ChoiceA high-velocity projectile, such as a bullet, will often leave a round, crater-shaped hole that is surrounded by a nearly symmetrical pattern of radial and concentric cracksTrueFalseMaybe
- 18. Multiple ChoiceA fracture in glass always terminates at an existing line of fractureTrueFalseMaybe
- 19. Multiple ChoiceThe examination of physical evidence, such as glass, may serve to prove the guilt of an individual but has limited ability in exonerating an innocent individual.TrueFalseMaybe
- 20. Multiple ChoiceThe thickness of glass may help determine the shape of the glass.TrueFalseMaybe
- 21. Multiple ChoiceThe collection process will usually start with the collection of the most fragile or most easily lost evidence.TrueFalseMaybe
- 22. Multiple ChoiceIf a glassmaker adds sodium carbonate (washing soda) into a mixture it will lower both the viscosity and the melting point.TrueFalseMaybe
- 23. Multiple ChoiceGlass fragment comparison is the comparison of two or more glass fragments in an attempt to determine if they originated form different sources.TrueFalseMaybe
- 24. Multiple ChoiceIf the density of a solid is greater than the liquid medium in which it is immersed, the object will:floatsuspend in the mediumsinklose density
- 25. Multiple ChoiceIn examining the stress marks on the edge of a radial crack near the point of impact, the perpendicular end is always found to be:located on the same side from which the force of impact was appliedlocated parallel to the cracke from which the force of impact was appliedlocated at a 90 degree angle from which the force of impact was appliedlocated opposite the side from which the forece of impact was applied
- 26. Multiple ChoiceWhat type of elements can give glass a specific color?metalgasliquidradioactive
- 27. Multiple ChoiceDifferent ____ can impart different properties of glassadditivesalpacassmellsshapes
- 28. Multiple ChoiceA significant difference in either density or refractive index proves that the glasses examined do not have a common _________colororiginshape
- 29. Multiple ChoiceWhat does PCA stand for?Pacific Coast AcademyPanama City AuthoritiesPrincipal Component AnalysisProper Computer Analysis
- 30. Multiple ChoiceAll glass at the crime scene should bethrown awaycollectedcrushedburnt
- 31. Multiple ChoiceImmersion Method isused to determine a glass fragment's refractive indexused to determine a glass fragment's densityused to analyzed the radial and concentric fracture patterns in glass
- 32. Multiple ChoiceA property of matter that depends on both the mass of a substance and the effects of gravity on that mass.densitymassweightforce
- 33. Multiple Choicemeasurement of how much matter is in an objectmassforceweightdensity
- 34. Multiple ChoiceA physical property of matter that is equivalent to the mass per unit volume of a substance.massweightdensityforce
- 35. Multiple ChoiceGlass bends in response to any ________.fractureweightdensityforce
- Answer choicesTagsAnswer choicesTags