CH111 Lecture Notes - Lecture 5: Tonne, Luminous Intensity, Picometre
25 Dec 2018
Department
Course
Professor
Document Summary
A unit in a system of measurements that is based on an object in the physical world that is independent of other units. To develop a common unit for scientists throughout the world. To better describe the range of possible measurements, base units are given prefixes to decrease or increase their value (commonly used by scientists across the world for a common ground). Volume = space occupied by an object (length x width x height) Density = ratio that compares the mass of an object to it"s volume (mass/volume) The ratio of equivalent values that cancel out to equal 1; it is used in a process called dimensional analysis, to convert one unit to another (ex: changing teaspoons to tablespoons) In representing data through line graphs the x axis plots the __________ variable, while the y axis plots the __________ variable.
