Measurement

How do you measure the volume using a graduated cylinder?

• Measurements must be taken from the top of the meniscus and at eye level

• Measurements must be taken by looking from above the cylinder

• Measurements must be taken by looking from below the cylinder

• Measurements must be taken from the bottom of the meniscus and at eye level

In a measurement, significant figure consist of the digits known ___________.

• only

• plus one estimated digit

• plus two estimated digits

How do we measure B with 3 significant digits?

• 9.2

• 9.20

• 9.25

• 9.00

What is the volume shown in this graduated cyclinder?

• 4.30 mL

• 4.35 mL

• 4.4 mL

• 4.40 mL

What is the volume shown in this graduated cyclinder?

• 24.0 mL

• 24 mL

• 23.7 mL

• 23 mL

What is the volume shown in this graduated cyclinder?

• 56 mL

• 60 mL

• 57.0 mL

• 56.0 mL

volume?

• 48 mL
• 48.2 mL
• 48.25 mL
• 4 mL

Volume?

• 63.5 mL
• 63 mL
• 63.55 mL
• 6 mL

length?

• 3.2 cm
• 3.12 cm
• 3 cm
• 3.219 cm

Three different people weigh a standard mass of 2.00 g on the same balance.  Each person obtains a reading of 7.32 g for the mass of the standard.  These results imply that the balance that was used is ____.

• accurate
• precise
• accurate and precise
• neither accurate nor precise