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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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A signal that can be represented as a sequence of discrete values.
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What is a Digital Signal? (491)
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A signal consisting of discrete/fixed values. examples: Morse Code, binary number system, a combination lock, et. al.
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A substance that kills harmful bacteria or viruses.
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What is a Disinfectant? (209)
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Ex. Bleach. A base that contains hypochlorous acid and feels slippery.
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An effect in which white light separates into component colors.
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What is Dispersion? (417)
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White light separates into different colors because of differences in wave speed as through a prism or in a rainbow.
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A microscopic magnetic region composed of a group of atoms whose magnetic fields are aligned in a common direction.
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What is a Domain? (471)
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An unmagnetized piece of iron can be magnetized by contact with a strong magnet which realigns the small regions or ________ to point in the same direction.
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An observed change in the frequency of a wave when the source or observer is moving.
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What is the Doppler Effect? (373)
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Frequency changes when the source of waves is moving causing the _______ _____. Use in meteorolgy for radar.
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A reaction in which a gas, a solid precipitate, or a molecular compound is formed from the apparent exhange of ions between two compounds.
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What is a Double-Displacement Reaction.
(158) |
Ex. AX + BY yields AY + BX with two compounds appear to exhange atoms.
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An event that occurs when one object passes into the shadow of another object.
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What is an Eclipse? (549)
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Predictable solar or lunar events that cause the Earth to grow temporarily dark by alignment of earth with the sun and moon.
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All of the living and nonliving elements of another object.
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What is an Ecosystem? (630)
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These systems are divided into comunities, vary in size, and are adapted to by all living things.
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A quantity, usually expressed as a percentage, that measures the ration of useful work output to work input.
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What is Efficiency? (312)
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Expressed as useful work output divided by work Input as a percentage.
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An electrical property of matter that creates a force between object.
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What is an Electric Charge? (430)
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Ex. Static Electricity occurs when objects have like charges. If an equal amount of positive and negative charges exist there will be no net charge.
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