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30 Cards in this Set

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