University:
Johns Hopkins University
Course:
AS.110.108. | Calculus I
Academic year:

2020
Views:

264

Pages:

3
Author:

rehinhea0c

Homework I. Multiple choice questions: 1. 1 liter = 1000 milliliter, how many significant figures in this “1000”? a) 1 b) 2 c) 3 d) Infinite number 2. How many significant figures are in the number 1000? a) 1 b) 2 c) 3 d) 4 3. How many significant figures are in the number 1.000? a) 1 b) 2 c) 3 d) 4 4. How many significant digits are in the number 1.300 × 108? a) 1 b) 2 c) 3 d) 4 5. The number 0.03968 rounded to three significant figures is ___. a) 0.039 b) 0.0396 c) 0.0397 d) 0.03 6. How many zeros are significant in the number 0.050000300? a) 2 b) 4 c) 5 d) 6 7. When expressed in proper scientific notation the number 0.00000089 is ___. a) 8.9 × 106 b) 8.9 × 10–6 c) 8.9 × 107 d) 8.9 × 10–7 8. How many significant figures should the answer to the following calculation contain? 91.05 + 23.0 – 10.005 a) 1 b) 2 c) 3 d) 4 e) 5 II. Unit conversion practice (show process) Complete the following metric conversions using the correct number of significant figures: 1) 8.0 km to mm (1km = 1000 m, 1m = 1000 mm) 8.0 x 106 8.0km x 1000m/1km x 1000mm/1m = 8x106 2) 0.680 mg to kg (1kg = 1000g, 1g = 1000mg) 6.8 x 10-7 0.680mg x 1g/1000mg x 1kg/1000g = 6.8 x 10-7 3) 22.4 L to μL (1L = 1000 mL, 1mL = 1000 μL) 2.24 x 107 μL 22.4L x 1000mL/1L x 1000μL/1mL = 2.24 x 10 7 μL

Significant Figures in Measurements Homework

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