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Phy sci vocab #1
| Question | Answer |
|---|---|
| An organized body of knowledge about the natural universe and the processes by which that knowledge is acquired and tested. | Science |
| An investigative process that holds that no concept or model of nature is valid unless the predictions it generates agree with experiments. That is, all hypotheses based on as much relevant data as possible and then should be tested and verified. | Scientific method |
| A fixed and reproducible value for the purpose of taking accurate measurements. | Standard unit |
| A group of standard units and their combinations. The two major systems of units in use today are the metric (SI) system and the British system. | System of units |
| The decimal (base-) system of units employed predominantly throughout the world. | Metric system |
| The system of units still often used in the United States, wherein the foot, pound, and second are the standards of length, weight, and time, respectively. The system is sometimes referred to as the fps (foot-pound-second) system. | British system |
| The measurement of space in any direction. | Length |
| The standard unit of length in the metric system. It is equal to inches, or feet. | Meter |
| A quantity of matter and a measure of the amount of inertia that an object possesses. | Mass |
| The standard metric unit of mass; kilogram has an equivalent weight of pounds. | Kilogram |
| The continuous forward flow of events. | Time |
| The standard unit of time. It is now defined in terms of the frequency of a certain transition in the cesium atom. | Second |
| The metric system that has the meter, kilogram, second, and coulomb as the standard units of length, mass, time, and electric charge, respectively. | MKS |
| A modernized version of the metric system that contains seven base units. | SI |
| Prefix that means 10 ^6, 1,000,000 or one million. | Mega |
| Metric prefix that means 10^3, 1000 or one thousand. | Kilo |
| The metric prefix meaning 1/100, or 0.01 | Centi |
| The metric prefix meaning 10 ^-3, or 0.001, or 1 one-thousandth (why did they out 1 twice?) | Milli |
| A metric unit of volume or capacity 1 L = 1000 cm ^3 | Liter |
| Multiples or combinations of units. | Derived Units |
| A measure of the compactness of the matter or mass of a substance using a ratio of mass to volume; p= m/v | Density |
| An equivalence statement expressed as a ratio. | Conversion factor |
| A method of expressing measured numbers properly; involves the accuracy of measurement and mathematical operations. | Significant figures |
Created by:
scarangelo