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Exam 10: Matter, Light, and Glass Examination

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Question 31

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The refractive index of a substance varies with:

A) Its temperature.
B) The wavelength of the light passing through it.
C) The color of the light passing through it.
D) All of the above

E) B) and C)
F) C) and D)

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Question 32

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The ________ line is a bright halo observed near the border of a particle that is immersed in a liquid with a different refractive index.

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Question 33

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The two most important physical properties of glass for forensic comparisons are:

Glass fragments removed from a single sheet of plate glass have a uniform density and refractive index value.

________ consists of slowly heating and then cooling a piece of glass.

Examples of intensive properties include density and refractive index.

The weight 264.45 grams can be correctly expressed as:

A piece of glass that is floating on the liquid's surface shows that the density of the glass is ________ than the density of the liquid.

What is the main ingredient in ordinary glass?

One milliliter of a liquid is ________ 1cc of the same liquid.

The only way to individualize glass fragments at a crime scene to a single source is to assemble the fragments and physically fit them together like a jigsaw puzzle.

Match the word in Column 1 to its definition in Column 2. Each answer can only be used once. A)The separation of light into its component wavelengths B)A constant property of matter that reflects the amount of material present C)The behavior of a substance without alteration of the substance's composition through a chemical reaction D)A difference in the two indices of a refraction exhibited by most crystalline materials E)The bending of a light wave as it passes from one medium to another F)A property of matter that depends on both the mass of a substance and the effects of gravity on the mass G)A physical property of matter that is equivalent to the mass per unit volume of a substance H)Glass that is strengthened by introducing stress through rapid heating and cooling of the glass surfaces I)A crack in a glass that forms a rough circle around the point of impact J)A crack in a glass that extends outward like the spoke of a wheel from the point at which the glass was struck K)The behavior of a substance when it reacts or combines with another substance L)A property that is not dependent on the size of the object M)A bright halo that is observed near the border of a particle immersed in a liquid of a different refractive index N)Two sheets of ordinary glass bonded together with a plastic film -Mass

When a bullet penetrates a panel of glass, it leaves a crater-shaped hole that:

The 3R rules states that Radial cracks form a Right angle on the Reverse side of the force.

If an object is immersed in a liquid of greater density, it will:

When tempered glass breaks, it does not shatter.

The larger opening of crater-shaped hole in glass made a projectile's penetration indicates the entrance side of the glass.

________ is the visual effect caused by an object's absorption of certain portions of the visible light spectrum and transmission or reflection of others.

________ is defined as weight per unit volume.

________ glass is used commonly in bottles and windows.