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accuracy values such as density of a specific element that are accepted norms and usually close to the targetpublished; if a measurement taken matches accepted norms or a standard value, it is said to be accurate
Best Fit Line A line of best fit (or “trend” line) is a straight line that best represents the data This line may pass through some, none, or all of the points on a scatter plot.
Curved Best fit line With a curved set of data a mathematical function that has the best fit to a series of data points is determined
bias a mindset that leads the researcher to base their hypotheses or conclusions on a narrow range of variables discounting other plausible ones Opinionated research
controlled experiment a scientific investigation where an experimental group (with treatment) is compared to a control group (without treatment) to ensure that the outcome is a result of the independent variable
Critical Thinking The ability and willingness to assess claims critically and to make judgments on the basis of objective an supported reasons
Dependent variable Dependent Variable: The variable that might change because of what the scientist changes – what is being measured The responding variable. It changes in response to the independent variable
Experimental conclusion Summary of findings, predictions, data analysis, includes experimental error explanation,
Experimental results Raw data, calculations
Experimental trials Each run of the experiment. Specifically how many times the experiment is run for each independent variable.
hypothesis a testable statement that is subject to further investigation and potential confirmation an educated guess that answers a question.
Independent variable The variable that is changed by the scientist; the ‘I control’ variable. The manipulated variable – the scientist manipulates or changes it.
inference a testable conclusion based on previously established knowledge, observed evidence, and logic
law a thoroughly tested, descriptive generalization of a highly regular phenomenon, usually expressed in mathematical form
Length A measure of the straight-line distance between two points
Mass A measure of the amount of matter in an object; a fundamental property of an object that is not affected by the forces that act on the object, such as the gravitational force.
Metric System SI International system of measurement which includes 7 base units including meters, liter, grams, Celcius or Kelvin, ampere, candela, seconds, mole
Physics - historical The modern word for natural philosophy is "science" The Greek word for science is "physikos," from which comes "physics."
Physics - modern For this course the study of physics is the study of the nature of matter and energy and how they interrelate. This course is a problem-based study and is designed to improve your ability to think.
precise using very exacting standards of measurement with the equipment available; a measurement is consistent
Precision The exactness of a measurement possible with a measuring device
precision the reproducibility of an observer's measured values, the amount of agreement among a series of individual measurements, values, or results
Qualitative data Data that describes qualities which are opinionated
Quantitative data Data that can be measured or gives a quantitiy.
scientific inquiry the diverse ways in which scientists pose questions about the natural world
Scientific Notation A number beginning in the ones place and multiplied by 10’s. Also shows precision of measurement.
Why is Scientific Notation used? A number beginning in the ones place and multiplied by 10’s. Also shows precision of measurement.
Significant Figure A prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement
Significant Figure All digits beginning with the left most non Include any final zero’s after a decimal.
Slope A constant showing the relationship between the change in the rise and the change in the run.
Slope equation Rise/run or Δy/Δx or (y2-y1)/(x2-x1)
Straight Line equation y=mx + b
testable hypothesis tentative explanation for an observation, phenomenon, or scientific problem that can be supported or refuted by further investigationIt is measurable, repeatable, changeable,and verifiable.
theory a broad explanation that integrates a wide range of observations and tested hypotheses, inferences, and laws (when applicable) into a meaningful and coherent whole
deductive form of reasoning where general principles are used to predict specific outcomes
falsifiable able to be shown to be incorrect by observation or experimentation
inductive a form of reasoning where general conclusions are based on a series of specific observations
model a description or physical replica which helps explain a concept
scientific investigations the diverse ways in which scientists study problems within the natural world
scientific knowledge the accumulated body of human understanding of how the natural world works
Created by: pratherj
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