Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
19 Cards in this Set
- Front
- Back
|
hypothesis
|
a testable statment
|
|
|
model
|
an explanation of how phenomena occurs and how data or events are reslated
|
|
|
sceientirfic method
|
a logical approach to solving problems by observing and collecting data, forumalating hypothesis, testing it , and formulating theories that are supported by data
|
|
|
system
|
a specific portion of matter in a given region of space that has been selected for study during an experiment or observation
|
|
|
theory
|
a braod generalization that explainsa body of facts or phenomena
|
|
|
conversion factor
|
a ration derived from the equality between 2 different untis that can be used to convert form one unit to another
|
|
|
density
|
the ration of mass to volume or mass divided by ovolume
|
|
|
derived unit
|
a unit that is a comhination of SI base untis
|
|
|
quanitity
|
something that has magnitude, size or amount
|
|
|
SI
|
the measurement system measured worldwide
|
|
|
volume
|
the amount of space occupied by an object
|
|
|
weight
|
a measure of the gravitaional pull on matter
|
|
|
accuracy
|
the closeness of measuremetns to the correct value when one is divided by the other
|
|
|
indirectly proportional
|
two quanitites have the same mathematical product
|
|
|
directly proportional
|
two quanitites that give a constant value when one is divided by the other
|
|
|
percent error
|
a value calculated by subtracting the experimental value from the accepted value, divideing the difference bt the accepted value and then multiplying by 100
|
|
|
precision
|
the closeness of a set of measurements of the same quantity made in the same way
|
|
|
scientific notation
|
numbers written in the form MX10^n where the factor M is a number greater than or equal to one but less than ten and n is a whole number
|
|
|
significant figures
|
any digit in a measurement that is known with certainty plus one final digit, which is somewhat uncertain or is estimated
|
