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Textbook Chapter 10: Matter, Light, and Glass Examination

Terms in this set (63)

Anything that has mass and occupies space is defined as __________.
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The basic building blocks of all substances are the __________.
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The number of elements known today is __________.
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An arrangement of elements by similar chemical properties is accomplished in the __________.
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A(n) __________ is the smallest particle of an element that can exist.
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Substances composed of two or more elements are called __________.
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A(n) __________ is the smallest unit of a compound formed by the union of two or more atoms.
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The physical state that retains a definite shape and volume is a(n) __________.
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A gas (has, has no) definite shape or volume.
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During the process of __________, solids do directly to the gaseous state, bypassing the liquid state.
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The attraction forces between the molecules of a liquid are (greater, less) than those in a solid.
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Different __________ are separated by definite visible boundaries.
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Mass per unit volume defines the property of __________.
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If an object is immersed in a liquid of greater density, it will (sink, float).
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The bending of a light wave because of a change in velocity is called __________.
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The physical property of __________ is determined by the ratio of the velocity of light in a vacuum to light's velocity in a substance.
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True or False: solids having an orderly arrangement of their constituent atoms are crystalline.
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Solids that have their atoms randomly arranged are said to be __________.
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The crystal calcite has two indices of refraction. The difference between these two values is known as __________.
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The process of separating light into its components colors or frequencies is known as __________.
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True of False: color is a usual indication that substances selectively absorb light.
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The distance between two successive identical points on a wave is known as __________.
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True or False: Frequency and wavelength are directly proportional to one another.
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Light, X-rays, and radio waves are all members of the __________ spectrum.
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Red light is (higher, lower) in frequency than violet light.
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A beam of light that has all of its waves pulsating in unison is called a(n) __________.
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One model of light depicts it as consisting of energy particles known as __________.
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True or False: The energy of a light particle (photon) is directly proportional to its frequency.
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Red light is (more, less) energetic than violet light.
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A hard, brittle, amorphous substance composed mainly of silicon oxides is __________.
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Glass than can be physically pieced together has ___________ characteristics.
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The two most useful physical properties of glass for forensic comparison are __________ and __________.
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True of False: Automobile headlights and heat-resistant glass, such as Pyrex, are manufactured with line oxide added to the oxide mix.
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__________ glass fragments into small squares or "dices," with little splintering when broken.
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__________ glass gains added strength from a layer of plastic inserted between two pieces of ordinary window glass; it is used in automobile windshields.
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Comparing the relative densities of glass fragments is readily accomplished by a method known as __________.
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When glass is immersed in a liquid of similar refractive index, its __________ disappears and minimum contrast between the glass and liquid is observed.
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The exact numerical density and refractive indices of glass can be correlated to __________ in order to assess the evidential value of the comparison.
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The fracture lines radiating outward from a crack in glass are known as __________ fractures.
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A crater-shaped hole in glass is (narrower, wider) on the side where the projectile entered the glass.
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True or False: Stress marks on the edge of a redial crack are always perpendicular to the edge of the surface on which the impact force originated.
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True or False: It is easy to determine from the size and shape o fa hole in glass whether it was made by a bullet or some other projectile.
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A fracture line (will, will not) terminate at an existing line fracture
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Glass fracture lines that encircle the hole in the glass are known as __________ fractures.
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When glass's elastic limit is exceeded, the first fractures develop into radial lines of the surface of the (same, opposite) side to that of the penetrating force
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Collected glass fragment evidence should be packaged in __________ containers to avoid further breakage.
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Glass-containing shows and/or clothing should be individually wrapped in __________ and transmitted to the laboratory.
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A(n) __________ property describes the behavior of a substance without reference to any other substance.
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A(n) __________ property describes the behavior of a substance when it reacts or combines with another substance.
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The __________ system of measurement was devised by the French Academy of Science in 1791.
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The basic units of measurement for length, mass, and volume in the metric system are the __________, ___________, and __________.
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A centigram is equivalent to __________ gram(s)
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A milliliter is equivalent to __________ liter(s)
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0.2 grams is equivalent to ___________ milligram(s).
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One cubic centimeter (cc) is equivalent to one __________.
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True or False: One meter is slightly longer than a yard.
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The equivalent of 1 pound in grams is __________.
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True or False: A liter is slightly larger than a quart.
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__________ is a measure of a substance's heat intensity.
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There are __________ degrees Fahrenheit between the freezing and boiling points of water.
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There are __________ degrees Celsius between the freezing and boiling points of water.
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The amount of matter an object contains determines its __________.
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The simplest type of balance for weighing is the __________.
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