Question

Significant Figures- Questions For the following measurements, underline the digits that are known with certainty and highlight in color the digits that are estimated. If a number is ambiguous, that is, the mumber of significant figures is uncertain, state so. In each case, explain your reasoning. 3) a) 4.35 m b) 0.009340 g c) 3400 km d) 1.38 x 103 m/s

Answer 1

Significant figure is combination of certain digit plus one uncertain digit.

(a) 4.35 Here 4 and 3 is certain and 5 is estimated since significant figure is combination of certain digit plus one uncertain digit.

(b) 0.009340 underline digits 0093 are certain 40 is uncertain. Here first and last zero is not included in significant figure.

(c) 3400 underline digit 3 is certain 400 is uncertain. Here last two zeros are not included in significant figure.

(d) 1 and 3 are certain and 8 is uncertain. It has 3 significant figure.

Significant figure is combination of certain digit plus one uncertain digit. (a)�4.35�Here 4 and 3 is certain and 5 is estimated since significant figure is combination of certain digit plus one uncertain digit. (b) 0.009340�underline digits 0093 are certain 40 is uncertain. Here first and last zero is not included in significant figure. (c) 3400 underline digit 3 is certain 400 is uncertain. Here last two zeros are not included in significant figure. (d) 1.38 times 10^3 1 and 3 are certain and 8 is uncertain. It has 3 significant figure.

I will be glad to see your comment if you have any query and thumb up if you are satisfied. Thanks...