Unit 2 - Midterm Exam Review - 24-25

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 a decimal number.

Front

How many significant figures are in 0.028160?

Back

5

Front

How many significant figures are in 10.50?

Back

4

Front

How many significant figures are in the sum of 1.01 + 4.7?

Back

2

Front

How many significant figures are in 3.00?

Back

3

Front

How many significant figures are in 0.04?

Back

1

Front

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

Back

Trailing zeros in a decimal number are counted as significant figures.

Front

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

Back

The number of significant figures in a measurement is determined by the precision of the measuring instrument and the rules for counting significant figures.

Front

What is the significance of significant figures in calculations?

Back

Significant figures indicate the precision of measurements and ensure that calculations reflect the accuracy of the data used.