Question

answer the following questions using the image below: determine the length (in cm) of the object using the ruler. ____ cm number of sig figs (only use whole numbers) __ lower calibration measurement: __ cm upper calibration measurement: ____ cm be sure to go to the appropriate amount of sig figs. remember, sig figs include all known digits, plus one estimated digit.

Explanation:

Step1: Determine length

The object starts at 3.00 cm and ends at approximately 3.65 cm. So the length is $3.65 - 3.00= 0.65$ cm.

Step2: Determine number of sig - figs

The measurement 0.65 has 2 significant figures. The 6 is a known digit and the 5 is an estimated digit.

Step3: Determine lower calibration

The smallest division on the ruler is 0.1 cm. The lower calibration measurement for 0.65 cm is 0.6 cm.

Step4: Determine upper calibration

The upper calibration measurement for 0.65 cm is 0.7 cm.

Answer:

0.65 cm
2
0.6 cm
0.7 cm