Unit 0 Review (OPTIONAL)

How many significant figures does the following number have: 0.002040

• 6
• 4
• 3
• 2

How many significant figures are in the number? 2804 m

• 3

• 4

• 5

• unknown

How many significant figures are in the number? 75,000 m

• 2

• 3

• 5

• unknown

How many significant figures are in the number? 4.06 x 10^-5 m

• 3

• 7

• 5

• unknown

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

What is 78.5 rounded to one significant figure?

• 79
• 78.5
• 70
• 80

Round the following number to 1 significant figure: 0.087084

• 0.1

• 0.09

• 0.087

• 0.9

• 0.08

Calculate 1.23 m x 0.89 m and give your answer with the correct number of significant figures.

• 1.0 m²
• 1.1 m²
• 1.0947 m²
• 1.095 m²

Calculate 12.47 m ÷ 3.2 s and give your answer with the correct number of significant figures.

• 4 m/s
• 3.9 m/s
• 3.90 m/s
• 3.897 m/s

Multiply 5.4L x 8.99g/L

• 49g
• 48.5g
• 48.55g
• 48.546g