Sig Figs - ID, Sci Notation, and measurements

Front

What are Significant Figures?

Back

Significant figures (sig figs) 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 do you determine the number of Significant Figures in a number?

Back

Count all non-zero digits, any zeros between significant digits, and trailing zeros in a decimal number. Leading zeros are not counted.

Front

Determine the number of Significant Figures in 101.00 mL.

Back

5

Front

Determine the number of Significant Figures in 101320 Pa.

Back

5

Front

Determine the number of Significant Figures in 10 L.

Back

1

Front

What is the Volume in the graduated cylinder if it reads 63.5 mL?

Back

63.5 mL

Front

Convert to scientific notation with 3 sig figs: 520,000,000.

Back

5.20 x 10^8

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a product of a number between 1 and 10 and a power of 10.

Front

How do you convert a number to scientific notation?

Back

Move the decimal point in the number to create a new number between 1 and 10, then count how many places you moved the decimal to determine the exponent of 10.

Front

What is the significance of trailing zeros in a decimal number?

Back

Trailing zeros in a decimal number are significant because they indicate precision. For example, 2.300 has four significant figures.