01:119:115 Lecture Notes - Lecture 2: Unified Atomic Mass Unit, Inductive Reasoning, Electron Shell
10 Sep 2015
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Variables are tools by which to conduct an experiment. 2 main types of reasoning- inductive and deductive. I. (1. 3) observations and hypotheses a. b. c. Inquiry - a search for information and explanations of natural phenomena. Data - recorded observations on which scientific inquiry is based i. ii. Qualitative - often in the form of recorded descriptions, not numerical measurements. Quantitative - generally expressed as numerical measurements, organized into tables and graphs d. Hypothesis - a tentative answer to a well-framed question; an explanation on trial i. ii. Experiment - a scientific test carried out under controlled conditions i. ii. Involves manipulation of one factor in a system to see the effects of changing it. Controlled experiment - is designed to compare an experimental group with a control group f. Variables - factors that vary in an experiment i. ii. Dependent - is measured in the experiment g. Uses logic to flow in the opposite direction from inductive reasoning.
