問題一覧
1
is made up of a number and a unit
measurement
2
comprises units of mile, yard, foot, gallon, quarts, inch, and pound
english system
3
constitutes units based on powers of 10 (preferred system to be used in science)
metric system
4
it is built upon 7 metric units, which are called ___ (2 ans pls)
international system of units, base units
5
combination of two or more base units is called
derived unit
6
is a letter or group of letters added at the beginning of base word to change its meaning
prefix
7
can be used to make a new unit larger or smaller
unit prefix
8
word or letters that precede a base unit in the SI unit. they are used to indicate how higher or lower the value of a unit is as compared with the base unit
SI prefixes
9
is the quantitative measure of the hotness and coldness
temperature
10
in 1724, ____ proposed the use of fahrenheit scale
daniel gabriel fahrenheit
11
He introduced by ___ during the 1740s, Celsius
anders celsius
12
simplified expression for large or very small number
scientific notation
13
digits that are considered in a measurement taken, whether with great or little degree of certainty
significant figure
14
magnitude of a physical quantity that may vary as a non-standard unit or is definite as a standard unit
unit
15
units of measurements not typically used, length of an arm, finger, footstep and many more
non-standard unit
16
value that is fixed and cannot be changed. it is needed to have uniformity in measurement
standard unit
17
measurements are done for at least three trials
uncertainties in measurement
18
qualitative term used in determining the degree of conformity of a test result to a true or accepted value
accuracy
19
pertains to the consistency of achieving the same results repeatedly even if the value is far from the true value
precision
20
the ones that the measuring instrument can give you
certain digits or exact digits
21
are the ones that you estimate. the smallest mark division in the measuring instrument
uncertain digits
22
are the fundamental units of measurement from which other units can be derived
base units
23
it was proposed by ___ who was also known as lord kelvin (2ans pls)
kelvin scale, william thomson
24
rankine scale was proposed by ___
william john macquorn rankine
25
the smallest mark division in the measuring instrument
least count