【Daily Question】2018.7.3
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Fill-in-the-blank: There are ( ) basic units in the International System of Units. 7
Fill-in-the-blank: There are (7) basic units in the International System of Units.
7 1. Length (l): meters, m 2. Mass (m): kilograms, kg 3. Time (t): seconds, s 4. Current (I): amperes, A 5. Thermodynamic temperature (T): kelvins, K 6. Amount of substance (n): moles, mol 7. Luminous intensity (lv): candela, cd
There are 7 base units in the International System of Units, as follows: ① Unit of length — meter (m). ② Unit of mass – kilogram (kg). ③Unit of time — second (s). ④ The unit of current intensity is the ampere (A). ⑤ The unit of thermodynamic temperature is the Kelvin (K). ⑥ The unit of amount of substance is the mole (mol). ⑦ The unit of luminous intensity is the candela (cd).