We’re being asked to determine the correct reading for the length of the metal bar with the correct number of significant figures:
The markings on the ruler correspond to 1 cm increments. We can see that the metal bar is just above the 15 cm mark.
What is the length of the metal bar with the correct number of significant figures?
a. 20 cm
b. 15 cm
c. 15.0 cm
d. 15.00 cm
e. 15.000 cm
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Significant Figures concept. You can view video lessons to learn Significant Figures. Or if you need more Significant Figures practice, you can also practice Significant Figures practice problems.