1 / 21

Entry Task: October 1 st Monday

Entry Task: October 1 st Monday. GRAB A NEW ENTRY TASK SHEET Question: 12.34 cm X 1.2 cm = _____cm You have 5 minutes!. Agenda. Sign off and discuss Math & Sci numbers Self Check- on Scientific Numbers- Ch. 2 P of U on Ch. 2.

abiola
Download Presentation

Entry Task: October 1 st Monday

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Entry Task: October 1st Monday GRAB A NEW ENTRY TASK SHEET Question: 12.34 cm X 1.2 cm = _____cm You have 5 minutes!

  2. Agenda • Sign off and discuss Math & Sci numbers • Self Check- on Scientific Numbers- Ch. 2 • P of U on Ch. 2

  3. 1. Determine the number of significant digits in each of the following. a) 6.751g c) 2500 m e) 0.106 cm 0.157 kg d) 0.070 g f) 0.0067 g 3 2-4 4 2 2 3

  4. 1. Determine the number of significant digits in each of the following. g) 26.509 cm i) 2.690 g h) 54.52 cm3 j) 43.07 cm 5 4 4 4

  5. Convert to the appropriate units and place into Scientific notation. K h da b d c m a) 0.075 kg to mg   b) 1500 mm to km 0.036 m to mm d) 1.00 kL to dL 75000 mg 7.5 x 104 mg 0.001500 km 1.500 x 10-3 km 36 mm 3.6 x 101mm 10000 dL 1.00 x 104dL

  6. 2. Convert to the appropriate units and place into Scientific notation. K h da b d c m g) 65 ml to hl h) 750 kg to g i) 2.36 hg to g 0.00065 hL 6.5 x 10-4hL 750000 g 7.50 x 105 g 236 g 2.36 x 102 g

  7. 3. Add these measurements a) 16.5 cm + 8 cm + 4.37 cm = 13.25 g + 10.00 g + 9.6 g = c) 2.36 m + 3.38 m + 0.355 m + 1.06m = d) 0.0853 g + 0.0547 g + 0.037g + 0.00387 g = 28.87 or 29 cm 32.85 or 32.9 g 7.155 or 7.16 m 0.18087 or 0.181 g

  8. 4. Subtract these measurements 23.27 km - 12.058 km = 13.57 g - 6.3 g = c) 350.0 m - 200 m = d) 27.68 cm - 14.369 cm = 11.212 or 11.21 km 7.27 or 7.3 g 150m 13.311 or 13.31 cm

  9. 5. Multiply these measurements 2.6 cm x 3.78 cm = 6.54 m x 0.37 m = c) 0.036 m x 0.02 m = d) 3.08 km x 5.2 km= 9.828 or 9.8 cm2 2.4198 or 2.4 m2 0.00072 or 7 x 10-4 m2 16.016 or 16 km2

  10. Divide these measurements 35 cm  0.62 cm = 39 g  24.2 g = 0.58 dm 2.15 dm = d) 40.8 m  5.050 m = 56.45 or 56 56.45 or 56 0.2697 or 0.27 8.0792 or 8.08

  11. Write the following numbers in Scientific notation. a. 0.0045834 mm b. 438904 s 0.03054 g d. 7004300000 g 4.5834 x10-3 mm 4.37904 x105 s 3.054 x10-2 g 7.004300000 x109 g

  12. Write the following numbers in ordinary notation a. 8.348 x 106 km b. 7.6352 x 10-3 kg c. 3.402 x 103 g d. 3.02 x 10-5 s 8348000 km 0.0076352 kg 3402 mm 0.0000302 s

  13. Convert the following measurements then place them into scientific notation k h da b d c m a. 5.70 g to mg b. 4.37 cm to m c. 783 kg to g d. 45.3 mm to m 10 m to cm f. 0.0015 hg to dg 5700 mg or 5.70 x 103 mg 0.0437 m or 4.37 x 10-2 m 783000 g or 7.83 x 105 g 0.0453 mm or 4.53 x 10-2 mm 1000 cm or 1.0 x 103 cm 1.5 dg

  14. Complete the following addition and subtraction measurement problems. REMEMBER THE RULES • a. 6.23 kL + 5.341 kL =   • b. 3.1 mm + 4.87 mm = • c. 7.5 kg - 5.43 kg = • d. 6.48 mm - 2.8 mm = 11.57 kL 8.0 mm 2.1 kg 3.7 mm

  15. Complete the following multiplication and division measurement problems. REMEMBER THE RULES • 4.8 km X 2.01 km = • b. 15.2 mm X 3.00 mm = • c. 8.421 kg ÷ 2.43 kg = • d. 10.20 mm ÷ 1.120 mm = 9.6 km2 45.6 mm2 3.47 9.107

  16. Why are significant figures so important in scientific data? Using two different instruments, I measured the length of my foot. Ruler #1 measured it to be 22.00 centimeters and ruler #2 had a measurement of 22 centimeters. Explain the difference between the two measurements. The more numbers in your measurement the more precise the measuring tool. Ruler 1 has 4 significant figures in its measurement verse Ruler 2 which has 2. Ruler 1 is more precise than Ruler 2.

  17. Rounding and reading Round 507,209,600 to … (Place in correct scientific notation) 2 S.F. _______________ 4 S.F. ________________ 6 S.F. _________________________ 9 S.F. _______________________ 5.1 x 108 5.072 x 108 5.07210 x 108 5.07209600 x 108

  18. Refer to the following measurement tool. In grams. What is the reading on this scale and underline your uncertainty? How many significant figures are in your measurement? 0.00260 g 3 sig figs

  19. Ch. 2 Sci Numbers Review STUDY FOR P of U

More Related