MEASUREMENTS Flashcards

1
Q

a process of
determining the extent of the dimensions,
quantity, or extent of something.

A

measurements

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2
Q

The most convenient
system of units is the ..

A

International System of
Units (SI).

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3
Q

indicate
the size of the unit relative to the base unit

A

prefixes

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4
Q

is the consistency of a result.

A

Precision

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5
Q

is determined when a certain quantitative value is
relatively close to the “true value”

A

Accuracy

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6
Q

is the uncertainty
that arises from a scale reading which results from the
uncontrolled variables in the measurement.

A

RANDOM ERROR (indeterminate error)

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7
Q

is the uncertainty that may come
from a flaw in the equipment used or design of an experiment. These error
are usually caused by measuring instruments that are incorrect calibrated or
are used incorrect.

A

SYSTEMATIC ERROR (determinate error)

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8
Q

provides
a
convenient
way
of
recording
results
and
doing calculations.

A

Scientific Notation

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9
Q

the digits in any measurement
that are known certainty with an additional one digit
which is uncertain.

A

Significant figures

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10
Q

is a process in which a conversion factor
written in a form of ratio is used to change units given in the data to the
units desired

A

Dimensional Analysis

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11
Q

is one of the common measurements
done in the laboratory. It involves getting Mass, Volume and
Temperature of an Object.

A

Density measurement

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12
Q

amount of space occupied by a substance. In
liquids, the volume can be determined using a graduated cylinder,
while solids, the volume can be determined by two methods.

A

Volume

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13
Q

is the ratio of the mass of an object to the
volume it occupies.

A
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