Significant Figures

Front

What are significant figures?

Back

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

Front

How many significant figures are in the number 153.0 mL?

Back

4

Front

When dividing 129.6 by 3, what is the answer with the correct number of significant figures?

Back

4x10^1

Front

How many significant figures are in 0.012 km?

Back

2

Front

How many significant figures are in 4.20 cm?

Back

3

Front

How many significant figures are in 1008 grams?

Back

4

Front

What is the rule for counting significant figures in a number with a decimal point?

Back

All non-zero digits are significant, any zeros between significant digits are significant, and trailing zeros in the decimal portion are significant.

Front

What is the rule for counting significant figures in a whole number without a decimal point?

Back

Only the non-zero digits are significant; leading zeros are not significant, and trailing zeros are only significant if there is a decimal point.

Front

How do you determine the number of significant figures in a measurement?

Back

Identify all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

What is the significance of significant figures in scientific calculations?

Back

Significant figures indicate the precision of measurements and calculations, ensuring that results are not presented with more certainty than the data allows.