SI unit n (Units) any of the units adopted for international use under the Système International d'Unités, now employed for all scientific and most technical purposes. There are seven fundamental units: the metre, kilogram, second, ampere, kelvin, candela, and mole; and two supplementary unit...
Which of these is not an SI base unit? a. kilogram b. second c. liter d. Kelvin What are the basic units of the International System (SI) of measurements for mass, distance, time, and temperature? What are some of the prefixes used to indicate common multiples and subdivisions of these...
Measurement in Metrics AC Science. Metric System Systems Internationale Systems Internationale AKA “SI” AKA “SI” Based on factors of 10 Based on factors. DENSITY. The amount of mass per unit of volume Items with low density: feathers, marshmallows, pillows, etc. Items with high density: ro...
1) Prefixes 前缀 aero-: 空气,大气;气体;飞机;航空 aerobiology (空气生物学,高空生物学); aeronautics (航空学,飞行学); aeromechanics (航空力学) astro-: 星,天体;宇宙 astrodynamics (天体动力学); astrogeology (天体地质学); astronomy (天文学) anti-: 反,抗,阻;治,止;防止,中和 antibody (抗体);...