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Chemistry 3.1
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Gravity
Terms in this set (23)
Accuracy
The _ of a measurment descirbes how close the measurement comes to the true value.
Percision
The _ of a measurment depends on its reproductibility
Experimental value
An _ is a value measured in the lab.
Error, accepted value
_ is caculated by subracting the _ _ from an experimental value
Absolute value, 100%
Percent error is calculated by dividing the _ of the error by the accepted value and then multiplying by _
Scientific notation
Large and small numbers are more easily handled whe expressed in _
Known, estimated
Significant figures in a measurment include all of the digits that are _ plus a last digit that is _
metric
The International Sytem of Units (SI) is a revision of the _ system
seven, meter
There are _ SI base units. In SI, the base unit of length is the _
liter
The space taken up by a cube that is 10 cm on each edge is one _
weight
A measure of the pull of gravity on an object of given mass is its _
gram
The mass of one cubic centimeter of water at 4 degrees C is one _
celcius, kelvin
Scientists commonly use two equivalent units of temperature, the degree _ and the _
joule, calorie
The _ and the _ are common units of energy
one (unity)
Whenver two measurements are equal, or equivalent, a ratio of these two measurments will equal _
converison factor
A ratio of equivalent measurments is called a _
remains the same
When a measurment is multiplied by a conversion factor, the value of the measurment _
dimensional anylis
In _, the units that are a part of the measurments are used to help solve the problem.
known
The form of the conversion factor that is used is one in which the unit of the _ is in the denominator
steps
Many complex word problems can be solved by breaking the solution into _
conversion factor
When converting between units, it is often necessary to use more than one _
denominator
In doing multistep problems, it is important to check that the numerator and _ of each conversion factor are equivalent
units, known
When the _ cancel, you should be left with the unit of the _.
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