Significant Figures

What are significant figures?

• They are the reliably known digits that a measurement contains.

• They are diagrams representing significant atoms and molecules.

• They are measurements which are important to everyday life.

• They are units of measurement in the International System of Units.

Select the measurement with the correct number of significant figures.

• 8.250

• 8.25

• 8.2

• 8

Select the measurement with the correct number of significant figures.

• 6 cm

• 6.770 cm

• 6.77 cm

• 6.775 cm

How many significant figures are in the following measurement?

2.51 m

• 1 significant figure

• 2 significant figures

• 3 significant figures

• 4 significant figures

• 5 significant figures

How many significant figures are in the following measurement?

0.008 s

• 4 significant figures

• 1 significant figure

• 3 significant figures

• 8 significant figures

How many significant figures are in the following measurement?

1052.8 km

• 5 significant figures

• 3 significant figures

• 10 significant figures

• 2 significant figures

• 4 significant figures

How many significant figures are in the following measurement?

3025.000 g

• 5 significant figures

• 7 significant figures

• 6 significant figures

• 3 significant figures

• 1 significant figure

How many significant figures are in the following measurement?

500 mL

• At least 1 significant figure

• 3 significant figures

• 2 significant figures

• 5 significant figures

• 4 significant figures

How many significant figures are in the following measurement?

5.0 × 10² s

• 5 significant figures

• 3 significant figures

• 1 significant figure

• 2 significant figures

• 0 significant figures

What is the following measurement rounded to 3 significant figures?

6.589 cm

• 6.59 cm

• 6.58 cm

• 6.589 cm

• 6.60 cm

• 6.5 cm