Measurement Quiz

Which of the following thermometers should be used for the most precise measurement?

• A

• B

• C

• D

• E

As part of a class investigation, James has been asked to heat 30 cm 3 of water and measure the temperature at which it boils. James knows that water boils at 100 °F.

Which group has the most accurate results?

• Group 1

• Group 2

• Group 3

• Group 4

As part of a class investigation, James has been asked to heat 30 cm 3 of water and measure the temperature at which it boils. James knows that water boils at 100 °F. Select the most precise group(s) of data.

• Group 1 & James

• Group 2

• Group 3

• Group 4

The conversion factor  $\frac{1L}{10^3\ mL}$  would be used to change

• milliliters to liters

• liters to milliliters

• liters to microliters

• units of length to units of volume

Precision is related to all of these except

• reproducibility of measurements

• range of measurement values

• number of significant figures

• closeness of a measurement to the accepted value

The number of significant figures in the measurement 170.040 km is

• 3

• 4

• 5

• 6

The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as

• 4.128 cm³

• 4.12 cm³

• 4.13 cm³

• 4.1 cm³

Samples with masses of 0.12 g, 1.8 g, and 0.562 g are mixed together. The combined mass of the three samples should be recorded as

• 2.4 g

• 2.48 g

• 2.482 g

• 2.5 g

In which of the following measurements are all the zeros considered to be nonsignificant?

• 506 mL

• 60.0 mL

• 0.0037 mL

• 400.0 mL

Expressed in scientific notation, 0.0930 m is

• 93 x 10³ m

• 9.3 x 10^-3 m

• 9.30 x 10^-2 m

• 9.3 x 10² m