Studied by 88 peopleScientific Method
A Logical, systematic approach to solving problems through observation
System
a specific portion of matter in a given region of space that has been selected for study during an experiment or observation
Hypothesis
a testable prediction
model
an explanation of how phenomena occur and how data or events are related
Theory
a broad generalization that explains a body of facts or phenomena
quantity
something that has magnitude, size, or amount
SI system
International System of units based on the metric system and units derived from the metric system
Weight
A measure of the force of gravity on an object
Derived Units
combinations of SI base units
Volume
The amount of space an object takes up
Density
the ratio of the mass of a substance to the volume of the substance
conversion factor
a ratio derived from the equality between two different units that can be used to convert from one unit to the other
dimensional analysis
a mathematical technique that allows you to use units to solve problems involving measurements
Accuracy
A description of how close a measurement is to the true value of the quantity measured.
Precision
a measure of how close a series of measurements are to one another
significant figures
All the digits that can be known precisely in a measurement, plus a last estimated digit
scientific notation
A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10.
directly proportional
the relationship between two variables whose ratio is a constant value
inversely proportional
A term used to describe the relationship between two variables whose product is constant.
Note
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