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Chemistry Chapter 3
Test Description: Chemistry Chapter 3
Instructions: Answer all questions to get your test result.
1) how close a measurement is to an accepted reference or theoretical value
A
unit analysis
B
precision
C
accuracy
D
conversion factor
2) a ratio constructed from the relationship between two units and equal to 1
A
exponent
B
conversion factor
C
unit analysis
D
precision
3) combinations of fundamental units
A
fundamental units
B
derived units
C
scientific notation
D
conversion factor
4) the power to which a number is raised
A
scientific notation
B
unit of measurement
C
exponent
D
conversion factor
5) a group of basic units in the SI system
A
derived units
B
fundamental units
C
pure number
D
scientific notation
6) a measure of the amount of matter in a given substance
A
unit of measurement
B
unit analysis
C
weight
D
mass
7) a number that indicates quantity and is followed by a unit
A
scientific notation
B
measurement
C
conversion factor
D
exponent
8) the agreement between two or more measurements
A
precision
B
accuracy
C
pure number
D
unit analysis
9) the number of units determined by the act of measuring
A
unit of measurement
B
fundamental units
C
pure number
D
derived units
10) a convenient way of expressing very large and very small numbers as a mantissa between 1 and 10 which is multiplied by 10 raised to some power
A
conversion factor
B
scientific notation
C
unit analysis
D
exponent
11) a problem-solving tool in which the units of numbers are changed by being multiplied by a conversion factor equal to 1
A
conversion factor
B
unit analysis
C
scientific notation
D
precision
12) one increment of the system being used to measure
A
exponent
B
pure number
C
conversion factor
D
unit of measurement
13) a unit of measure of the gravitational force exerted on a substance
A
weight
B
pure number
C
conversion factor
D
mass
*select an answer for all questions
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