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30 Cards in this Set
- Front
- Back
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What are the four assumptions for inquiry?
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Regularity, Causality, Measurability, Predictability
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What is the definition of regularity?
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Regularity means events recur according to discoverable patterns. (It happens over and over again.)
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What is the definition of causality?
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Causality means events have discoverable causes. (There is a reason for it.)
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What is the definition of measurability?
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Measurability means that the world can be described by simple, mathematical relationships. (It can be measured and verified.)
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What is the definition of predictability?
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Predictability means that future events can be predicted on the basis of past events. (Its recurrence can be anticipated and predicted.)
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What is the definition of the scientific method?
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It is the formal procedure scientists use to gain knowledge about the physical universe.
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What is the definition of hypothesis?
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It is a tentative explanation for a set of facts
which can be tested by further investigation. |
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What is the definition of inductive reasoning?
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It is the process of reasoning from specific examples to general cases.
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What is the definition of deductive reasoning?
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It is a method of proof in which each step is a known fact, as it is based on previously known facts.
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Inductive reasoning is empirical. What does empirical mean?
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It measn that it is based on experiences and observations in the real world.
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What two things define a scientific hypothesis?
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A scientific hypothesis must be testable. It also must be able to be proved wrong.
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What is the definition of a qualitative description?
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It is a description done solely in words.
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What is the definition of a quantitative description?
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It is a description given in numbers.
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What is the definition of precision?
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It is a measure of how consistently a result is determined by repeated evaluations.
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What is the definition of accuracy?
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It is how close a reading or measurement comes to the actual value of the quantity being measured.
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What are significant figures?
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They are measured digits that are known with certainty plus one estimated digit.
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What is the least count?
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It is the size of the smallest scale of division on an instrument.
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Where can I study the rules for significant figures?
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On my MindMap and in A Roundabout Way with Numbers.
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What is scientific notation?
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It is a method of expressing a number as the product of a power of 10 and a number between 1 and 10.
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What are units?
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They are a means of classifying measured values.
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What are naked numbers?
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They are numbers left without a unit to measure them.
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What is the definition of magnitude?
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It is a property of an object's size.
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What is the definition of dimension?
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It is the qualitative nature of a physical measure.
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What does SI stand for?
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It stands for Le Système International D'unités (Internation System of Units).
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What are conversion factors?
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They are ratios that express equal quantities in different untis.
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What is a graph?
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It is a picture of an equation.
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What is an independent variable?
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It is a factor or variable that changes naturally or is intentionally manipulated to observe an effect. It is plotted along the x-axis.
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What is a depedent variable?
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It is a factor or condition being tested.
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What are linear relationships?
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They are relationships in which a change in the independent variable causes a proportionally equal change in the dependent variable. These graphs are always straight lines.
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What are inverse relationships?
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They are relationships in which one variable gets larger as the other gets smaller.
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