Laboratory Preparation & Procedure

Materials: 

• Metric Rulers (2)
• Object A
• Object B
• Object C
• Object D
• Scissors

Safety:

No chemicals are in use but be aware of your surroundings in your handling of the scissors.

Procedure:

1. Collect the metric ruler designated as ‘1.’
2. Use metric ruler 1 to measure the length and width of Object A. Report your measured values to the correct precision of the device. Record in Table 1.
3. Convert each of your measured centimeter values to meters. Show your conversion.
4. Complete Table 1 by writing the number of significant figures found in each measured quantity.
5. Repeat steps 2 -3 for Objects B, C, and D.
6. Calculate the area of each object using the appropriate formula for its shape. Record the calculator value in Table 2.
7. Applying the rules of significant figures, adjust your calculator value to reflect the correct number of significant figures based on the mathematical operation.
8. Complete Table 2 by writing the number of significant figures that should be reflected in your adjusted value.
9. Determine the perimeter of each object. Record the calculator value in Table 3.
10. Applying the rules of significant figures, adjust your calculator value to reflect the correct number of decimal places based on the mathematical operation.
11. Collect the metric ruler designated as ‘2.’
12. Use metric ruler 2 to measure the length and width of Object A. Report your measured values to the correct precision of the device. Record your measured values in Table 4.
13. Convert each of your measured centimeter values to meters. Show your conversion.
14. Complete Table 4 by writing the number of significant figures found in each measured quantity.
15. Repeat steps 11-12 for Objects B, C, and D.
16. Calculate the area of each object using the appropriate formula for its shape. Record the calculator value in Table 5.
17. Applying the rules of significant figures, adjust your calculator value to reflect the correct number of significant figures based on the mathematical operation.
18. Complete Table 5 by writing the number of significant figures that should be reflected in your adjusted value.
19. Determine the perimeter of each object. Record the calculator value in Table 6.
20. Applying the rules of significant figures, adjust your calculator value to reflect the correct number of decimal places based on the mathematical operation.