Question

iv) 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

Significant figures: ... The number of significant figures in the expression indicates the confidence or precision with which an engineer or scientist records or reports a quantity. Order of magnitude: On the other hand, order of magnitude, is an exponential change in the power of 10 in the value of a quantity.