Units

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length: metre /ˈmiːtə $ -ər/

mass: kilogram /ˈkɪləɡræm/

time: second /ˈsekənd/

electric current: ampere / ˈæmpɪr; ˈæmper/ (abbr. A) . amp /æmp/. a 13 amp fuse/plug. In daily speaking, native speakers mostly use ‘amp’ for its conciseness=concision /kənˈsɪʒn/. cruiser /’kru: zər/.

temperature: kelvin/ˈkelvɪn/. celsius/ˈselsiəs/=centigrade/ˈsentɪɡreɪd/(centum=a hundred, gradus=step). fahrenheit/ˈfærənhaɪt/.

luminous intensity: candela /kænˈdelə/ càn đé là /kænˈdiːlə/ càn đí là /ˈkændɪlə/ cán đè lờ.

angle: degree/dɪˈɡriː/, radian/ˈreɪdiən/

solid angle: steradian

minute, hour/ˈaʊər/, day, degree of arc, minute of arc, second of arc, hectare/

ˈhekter//ˈhektɑː(r)/,

litre/ˈliːtər/,

tonne/tʌn/, astronomical unit and

[deci]bel/ˈdesɪbel/

electronvolt /ɪˈlɛk trɒnˌvoʊlt/  (symbol eV),

dalton/ˈdɔl tn/ /unified atomic mass unit (Da or u)

bar/bɑːrn/, millimetre of mercury,

ångström/ˈæŋstrəm/, nautical mile/ˈnɔːtɪkl//maɪl/, barn/bɑːrn/,

knot /nɒt $ nɑːt/, neper

Gaussian/gaʊsiən/

erg/ɜːrɡ/, dyne/daɪn/, poise/pɔɪz/, stokes/stoʊks/, stilb, phot, gal,

maxwell/ˈmækswel/,

gauss/gaʊs/, and œrsted.

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hertz /hɜːrts/ Hz frequency s−1
newton /ˈnuːtən/ N force, weight kg·m·s−2
pascal /ˈpæskl/ Pa pressure, stress N/m2 kg·m−1·s−2
joule /dʒuːl/ J energy, work, heat N·m kg·m2·s−2
watt /wɑːt/ W power, radiant flux J/s kg·m2·s−3
coulomb /ˈkuːlɑːm/ /ˈkuːlɔːm/ C electric charge or quantity of electricity s·A
volt /voʊlt/ V voltage (electrical potential difference), electromotive force W/A kg·m2·s−3·A−1
farad /ˈfæræd/ F electric capacitance C/V kg−1·m−2·s4·A2
ohm /oʊm/ Ω electric resistance, impedance, reactance V/A kg·m2·s−3·A−2
siemens /ˈsiːmənz/ S electrical conductance A/V kg−1·m−2·s3·A2
weber /ˈveɪbər/ Wb magnetic flux V·s kg·m2·s−2·A−1
tesla T magnetic flux density Wb/m2 kg·s−2·A−1
henry /ˈhenri/ H inductance Wb/A kg·m2·s−2·A−2
degree Celsius °C temperature relative to 273.15 K K
lumen /ˈluːmen/ lm luminous flux cd·sr cd
lux lx illuminance lm/m2 m−2·cd
becquerel /ˈbekərel/ Bq radioactivity (decays per unit time) s−1
gray /ɡreɪ/ Gy absorbed dose (of ionizing radiation) J/kg m2·s−2
sievert /ˈsiːvərt/ Sv equivalent dose (of ionizing radiation) J/kg m2·s−2
katal kat catalytic activity mol·s−1

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Standard prefixes for the SI units of measure
Multiples Prefix name deca /ˈdekə/ hecto /ˈhektoʊ/ kilo /ˈkiːloʊ/ mega /ˈmeɡə/ giga /ˈɡɪɡə‑/ /ˈdʒɪɡə‑/ tera /ˈterə/ peta /ˈpetə‑/ exa /ˈeksə‑/ zetta yotta /ˈjɑːtə‑/
Prefix symbol da h k M G T P E Z Y
Factor 100 101 102 103 106 109 1012 1015 1018 1021 1024

Fractions Prefix name: deci /ˈdesɪ‑/ centi /ˈsentɪ‑/ milli /ˈmɪli/ micro/ˈmaɪkroʊ/ nano /ˈnænoʊ/ pico /ˈpiːkoʊ‑/ /ˈpaɪkoʊ‑/ femto /ˈfemtoʊ/ atto /ˈætoʊ/ zepto yocto /ˈjɑːktoʊ‑/
Prefix symbol d c m μ n p f a z y
Factor 100 10−1 10−2 10−3 10−6 10−9 10−12 10−15 10−18 10−21 10−24

decibel /ˈdesɪbel/, hectogram /ˈhektəɡræm/ mircrometre /ˈmaɪkroʊmiːtər/ kilogram /ˈkɪləɡræm/=kilo megabit /ˈmeɡəbɪt/ gigabyte /ˈɡɪɡəbaɪt/.

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gallon/ˈɡælən/

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animism /ˈænɪmɪzəm/ noun word origin [uncountable] 1 the belief that plants, objects and natural things such as the weather have a living soul 2 belief in a power that organizes and controls the universe. animist /ˈænɪmɪst/ noun. animistic /ˌænɪˈmɪstɪk/ adjective

anima•tron•ics /ˌænɪməˈtrɑːnɪks/ noun [uncountable] the process of making and operating robots that look like real people or animals, used in films/movies and other types of entertainment anima•tron•ic /ˌænɪməˈtrɑːnɪks/ adjective

anime /ˈænɪmeɪ/ /ˈænɪmə/

zeal /ziːl/~ (for/in sth) (formal) great energy or enthusiasm connected with sth that you feel strongly about. zealot /ˈzelət/ (often disapproving) a person who is extremely enthusiastic about sth, especially religion or politics. SYN: fanatic

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Acceleration due to gravity: Gia tốc trọng trường:  9.81 m/s^2. The lowercase letters (neither “metres” nor “seconds” were named after people), the space between the value and the units, and the superscript/ˈsuːpərskrɪpt/ “2” to denote “squared”.

Avogadro constant /ˌɑ vəˈgɑ droʊ; Italian ˌɑ vɔˈgɑ drɔ//ˈkɒnstənt $ ˈkɑːn-/

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