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15 Cards in this Set
- Front
- Back
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scientific method
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logical approach to solving problems by observing and collecting date, formulating hypotheses, testing hypotheses, and formulating theories that are supported by data
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hypothesis
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explanation that is based on prior scientific research or observations that can be tested
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theory
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explanation for some phenomenon that is based on observation, experimentation, and reasoning
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model
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pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept
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qualitative
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non-numerical information; descriptive
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quantitative
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numerical information
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quantity
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something that has magnitude, size, or amount
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unit
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defined in terms of standards of measurement; compare quantities to be measured with a standard
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measurement standard
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objects or phenomena that are of constant value-previously defined size
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SI base unit
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meter, kilogram, second, kelvin, mole, ampere, candela
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Derived SI Units
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combinations of SI base units
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mass
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measure of the amount of matter in an object
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weight
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measure of the gravitational force exerted on an object; its value can change with the location of the object in the universe
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accuracy
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refers to the closeness of measurements to the correct or accepted value
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precision
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refers to the closeness of a set of measurements made in the same way (reproducibility of results)
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