Unit 1: Measurement & Calculations

Which of the following weighing balance is more precise?

• A

• B

• C

Which of the following weighing balance is more accurate?

• A

• B

• C

What is the measurement using the correct number of sig. figs.?

• 89cm
• 88.9cm
• 88.90cm
• 88cm

What is the reading of the meniscus?

• 36mL
• 45mL
• 35.0mL
• 30.5mL

How many significant figures does the following number have: 0.00204

• 6
• 4
• 3
• 2

How many significant figures does the following number have: 0.998005

• 9
• 10
• 6
• 5

How many significant figures does the following number have: 100.00210

• 7
• 5
• 10
• 8

How many significant figures does the following number have: 100.3

• 4
• 3
• 5
• 2

Round 1047.78 to three sig figs

• 104
• 105
• 1050
• 1050.00

The metric unit of measurement for mass is the: 

• gram
• liter 
• meter