AP Physics Vocabulary Chapter 2
Physics: Principles with Applications
Sixth Edition - Updated
Douglas C. Giancoli
Terms : Hide Images
| 82061504 | observation | use of one or more of the senses to gather information | 82061504 | |
| 82061505 | theory | a well-substantiated explanation of some aspect of the natural world | 82061505 | |
| 82061506 | test | trying something to find out about it | 82061506 | |
| 82061507 | model | a kind of analogy or mental image of the phenomena in terms of something else we are already familiar with | 82061507 | |
| 82061508 | law | statement about how things work in nature that seems to be true consistently | 82061508 | |
| 82061509 | principle | like a law, but less general | 82061509 | |
| 82061510 | precision | refers to the repeatability of the measurement using a given instrument | 82061510 | |
| 82061511 | accuracy | refers to how close a measurement is to the true value | 82061511 | |
| 82061512 | estimated uncertainty | plus or minus 0.1 cm is an example | 82061512 | |
| 82061513 | percent uncertainty | the ratio of the uncertainty to the measured value, multiplied by 100 | 82061513 | |
| 82061514 | significant figures | the number of reliably known digits in a number | 82061514 | |
| 82061515 | unit | amount used to measure something | 82061515 | |
| 82061516 | standard | an exact quantity that people agree to use for comparison | 82061516 | |
| 82061517 | meter | standard of length | 82061517 | |
| 82061518 | second | standard of time | 82061518 | |
| 82061519 | kilogram | standard of mass | 82061519 | |
| 82061520 | unified atomic mass unit | used when dealing with atoms and molecules; (u) | 82061520 | |
| 82061521 | SI units | Most important set of units in the science world | 82061521 | |
| 82061522 | cgs system | set of units that uses centimeter, gram, and second | 82061522 | |
| 82061523 | British engineering system | set of units that uses the foot, the pound, and the second | 82061523 | |
| 82061524 | base quantity | defined in terms of standards | 82061524 | |
| 82061525 | operational definition | rule of procedure for to define any quantity | 82061525 | |
| 82061526 | conversion factor | what we use to change the units of a quantity | 82061526 | |
| 82061527 | order-of-magnitude estimate | a rough estimate made by rounding off all numbers to one significant figure and its power of 10, and after the calculation is made, again only one significant figure | 82061527 | |
| 82061528 | dimensions | these refer to the type of units or base quantities that make up a quantity | 82061528 | |
| 82061529 | dimensional analysis | the process of using dimensions to work relationships | 82061529 |
