| Term | Definition |
|---|
| system | a specific portion of matter in a given region of space that has been selected for study during an experiment or observation |
| scientific method | a logical approach to solving problems by observing and collecting data,formulating hypoteses, testing hypothesis and formulating theories that are supported by data. |
| hypothesis | educated guess |
| quantitative | numverial information |
| qualitative | non-numerical data |
| theory | is a broad generalization that explains a body of facts or phenomena |
| quantity | something that has magnitude or size |
| SI | Le Systeme International d"Unites |
| weight | measure of the gravitational pull on matter |
| derived units | combination of SI base units |
| volume | amount of sspace occupied by an object |
| density | m/v mass divided by volume |
| accuracy | refers to the closeness fo measurements to the correct or accepted value of the quantity measured |
| precision | refers to the closeness of a set of measurements ot the same qunatity made in the same way. |
| percent error | is calcuated by substracting the experimental value from the accepted value, dividing the difference byt the accepted value and then multiplying by 100 |
| directly proportional | when 1 number goes up the other goes up |
| indirectly proportional | when 1 number goes up the other goes down |
Combine with other sets
Share on Facebook
Share on MySpace