Measurement, Sig Figs

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

Back

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

Front

Calculate and report the answer with the correct number of sig figs: 54400g / 4.298g

Back

12700 (3 significant figures from 4.298g)

Front

Which of the following best represents the length reading from a metric ruler: 0.8 cm, 0.80 cm, 0.800 cm, 8 cm?

Back

0.80 cm (2 significant figures)

Front

How many significant figures are in the number 350.540?

Back

6 significant figures.

Front

How many significant figures are in the number 0.0005?

Back

1 significant figure.

Front

How many significant figures are in the number 4,500?

Back

2 significant figures (if no decimal point is present).

Front

What is the rule for multiplication and division regarding significant figures?

Back

The result should have the same number of significant figures as the measurement with the least number of significant figures.

Front

What is the rule for addition and subtraction regarding significant figures?

Back

The result should be reported to the least precise decimal place of any number in the operation.

Front

If a number is written as 0.00456, how many significant figures does it have?

Back

3 significant figures.