Question

Jeffe is explaining dimensional analysis to a friend. he says that dimensional analysis can be used to convert between units. what is needed for this conversion? an understanding of significant figures in metric units an understanding of the difference between accuracy and precision of units an equality that tells how much of one unit is equal to another unit an algebra book that explains how linear equations can be set up with units

Answer 1

The correct answer is equality which tells how much of one unit is equal to another unit.

By determining the base quantities and units of measure for each physical quantity and tracking these dimensions as computations or comparisons are made, the dimensional analysis examines the relationships between various physical quantities. Due to the regular 10-base in all units, converting between dimensional units within the metric or SI system is frequently simpler than it is in other systems. Algebraic conversions are frequently done using dimensional analysis, most specifically the factor-label approach also called the unit-factor method. Even if they are initially expressed in different units of measure, such as yards and meters, commensurable physical quantities are the same kind, have the same dimension, and may be compared directly to one another.

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