HC 6.2 GDHW Sig Fig/Rounding

Front

How many significant figures are in the number 0.0005?

Back

1 significant figure.

Front

How many significant figures are in the number 0.0045?

Back

2 significant figures.

Front

How many significant figures are in the number 4.56 x 10^3?

Back

3 significant figures.

Front

The number 1.0300 has ____ significant figures.

Back

5 significant figures.

Front

What is the measurement 1042 Liters rounded to 2 significant figures?

Back

1.0 x 10^3 L.

Front

Define significant figures.

Back

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

Front

What is the rule for counting significant figures in leading zeros?

Back

Leading zeros (zeros before the first non-zero digit) are not counted as significant figures.

Front

What is the rule for counting significant figures in trailing zeros?

Back

Trailing zeros in a number without a decimal point are not significant; however, trailing zeros in a decimal number are significant.

Front

How do you round the number 0.004567 to 2 significant figures?

Back

0.0046.

Front

What is the significance of the number of significant figures in scientific measurements?

Back

The number of significant figures indicates the precision of a measurement and helps convey the uncertainty in the measurement.