Sig Figs & Units

Front

What are significant figures (sig figs)?

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 measurement?

Back

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

Front

What is the rule for rounding to a specific number of significant figures?

Back

If the digit to the right of the last significant figure is less than 5, round down. If it is 5 or greater, round up.

Front

Round the number 0.00456 to two significant figures.

Back

0.0046

Front

What is the significance of the number of significant figures in calculations?

Back

The number of significant figures indicates the precision of a measurement and should be maintained in calculations to reflect the accuracy of the data.

Front

How do you perform addition and subtraction with significant figures?

Back

The result should be rounded to the least number of decimal places of any number in the operation.

Front

How do you perform multiplication and division with significant figures?

Back

The result should be rounded to the least number of significant figures of any number in the operation.

Front

What is the SI base unit for length?

Back

Meter (m)

Front

What is the SI base unit for mass?

Back

Kilogram (kg)

Front

What is the symbol for the element Carbon?

Back

C