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# 290Inquiry

Question | Answer |
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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 |