Understand the importance of fundamental units of physical quantities and distinguish between the two systems of units. Explore the rules for writing the units for any physical quantity. Estimate and measure very small and very large distances. Determine the dimensions of any physical quantity, using dimensional analysis. Understand the nature of errors and methods of analysis of the errors in measurement. Observe and understand the difference between accuracy and precision. Determine the number of significant figures in a numerical value. Analyse the least count of some measuring devic
Units and Vectors is a free educational mobile app By .It helps students in grades HS practice the following standards HSN.VMA.1.