Significant Figures in Measurement

• To determine the size of an object
• To indicate precision and accuracy of a measurement (correct)
• To measure the temperature of a system
• To calculate the density of a substance

• The result should have one more decimal place than the least precise measurement used in the calculation
• The result should be expressed in scientific notation
• The result should be rounded to the same number of significant figures as the least precise measurement used in the calculation (correct)
• The result should be rounded to the next higher whole number

• To make measurements look more accurate
• To complicate the process of recording measurements
• To decrease the precision of experimental data
• To avoid errors in experimental data analysis (correct)