How many significant figures are in the number 0.000500?

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Question: How many significant figures are in the number 0.000500?

Options:

Correct Answer: 3

Solution:

The significant figures are 5, 0, and the trailing zero counts, totaling 3.

How many significant figures are in the number 0.000500?

How many significant figures are in the number 0.000500?

Step 1: Identify the non-zero digits in the number 0.000500. The non-zero digit is 5.
Step 2: Count the zeros that are between non-zero digits. In this case, there are no zeros between non-zero digits.
Step 3: Identify the trailing zeros. The zeros after the 5 (which are 00) are significant because they come after a decimal point and a non-zero digit.
Step 4: Count all the significant figures. We have 1 (from 5) + 1 (from the first 0) + 1 (from the second 0) = 3 significant figures.

Significant Figures – Significant figures are the digits in a number that contribute to its precision, including all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.