Question

Describe what is meant by significant
figures and order of magnitude.​

Answer 1

Answer:

Significant figures are the actual values that we use to answer. ... Also, we count the digits of the number starting from first non-zero digit , in the case of significant figures. Order of magnitude, on the other hand, is an exponential change in the power of 10 in the value of a quantity.

Answer 2

Answer:

Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit. Calculate the number of significant figures for an assortment of numbers.

Orders of magnitude are used to make approximate comparisons. If numbers differ by one order of magnitude, x is about ten times different in quantity than y. If values differ by two orders of magnitude, they differ by a factor of about 100.