University:
High School
Course:
High School Physics
Academic year:

2022
Views:

274

Pages:

2
Author:

5CelestialChronicle

Name:_________________________ Per:____ Significant Figures Practice Problems Part I- Record each measurement with the correct number of sig. figs & units for each device Graduated Cylinders ( mL) 1. ________ 2. ________ Beakers (mL) 3. ________ Balance (g) 4. ________ 5. ________ Rulers (cm) 6._____ ○ 7.______ Thermometers ( C) 8. ______ 11. a. Explain in words how you determine the number of sig. figs. on a measuring device. b. Why do we need to use significant figures in science? 9.________ 10._________ Part II- Identifying Sig Figs and recognizing metric units and the quantities they represent Measurement # of sig. figs. Metric Unit Quantity measured (underline the sig figs) 12) 30040 g 4 Grams mass 13) 0.663 kg 14) 20.05 °C 15) 1500. mg 16) 0.0008 m 17) 640 cm 18) 640. cm 19) 200.0 mL 20) 1.005 kg 21) 10 000 L 22) 1000.0 L 23) 10 000. L 24) 0.04002 kg/m3 25) 790 001 cm3 26) 665.000 kg 27) 20.9000 mm2 Part III- Use the correct units and correct number of sig. figs. Show your calculator answer too! 28) 47.0 m 2.2 s 29) (140 cm)(35 cm) 30) 300.3 L 180. s 31) 35 g 22 L 32) (0.0050 m2)(0.042 m) 33) 5.88 kg 200 m3 34) (33.00 cm2)(2.70 cm) 35) (13.75 mm)(1.01 mm)(0.91 mm) 36) 14.9 m3 3.0 m2 37) What is the volume of a container that measures 752 mm x 319 mm x 110 mm? Part IV- No Calculator. Must show work & correct number of sig. figs. 38) 4.0 m x 3 m = 39) 30.0 cm x 15.0 cm x 3.0 cm = 40) 25 g ÷ 5.0 mL = 41) 1.0 cm3 ÷ 200.0 cm2