Scientific Notation and Significant Figures

Front

What is scientific notation?

Back

A method of expressing numbers as a product of a coefficient and a power of 10, e.g., 4.5 x 10^3.

Front

How is 0.000044 written in scientific notation?

Back

4.4 x 10^-5

Front

What are significant figures?

Back

Digits in a number that contribute to its precision, including all non-zero digits, zeros between significant digits, and trailing zeros in the decimal part.

Front

How many significant figures does 100.00 mL have?

Back

5

Front

How many significant figures does 1.90 L have?

Back

3

Front

How many significant figures does 0.00008770 sec have?

Back

4

Front

Which of the following has 4 significant figures: 1010 cm, 0.0055 L, 5000 in, 101.0 sec?

Back

101.0 sec

Front

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

Back

All non-zero digits are significant, and any zeros to the right of a decimal point and after a non-zero digit are also significant.

Front

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

Back

Only non-zero digits are significant; leading zeros are not significant.

Front

Convert 0.00456 to scientific notation.

Back

4.56 x 10^-3