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Physical Ch.1
Physical Science Ch.1 Introduction to Science
| Term | Definition |
|---|---|
| Science | The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested |
| Technology | Is the application of science for practical uses |
| Law | A descriptive statement or equation that reliably predicts events under certain conditions. |
| Theory | a system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation. |
| Critical Thinking | the ability and willingness to assess claims critically and to make judgements on the basis of objective and supported reasons. |
| Scientific Method | A series of steps followed to solve problems including collecting data, formulating hypothesis, testing the hypothesis, and stating conclusions. |
| Variable | A factor that changes in an experiment in order to test a hypothesis. |
| Bias | a way of thinking that favors one outcome or interpretation |
| Length | Measure of the straight line distance between two points. SI unit=Meter(M) |
| Mass | Measure of the amount of matter in an object. Si unit= Kilogram (kg) |
| Volume | A measure of the size of body or region in three dimensional space. SI unit= cubic meter (m3) |
| Weight | A measure of gravitational force exerted on an object. |
| Scientific Notation | A method of expressing a quantity as a number multiplied by 10 to the appropriate power |
| Precision | The exactness of a measurement |
| Significant figure | A prescribed decimal place that determines the amount of rounding off to be done based on the precision of the measurement. |
| accuracy | A description of how close a measurement is to the true value of the quantity measured |
| Dependent Variable | Is the value measured. It depends on what happens in the experiment and the independent variable. |
| Independent Variable | The variable the is manipulated or controlled. |
| Bar graph | When you want to compare similar data for several individual items or events. |
| Line Graph | Good for displaying data that changes continously |
| Pie Graph | For displaying data of parts of a whole |
Created by:
osubuckeye1012
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