When , your 3. Determine the number of significant figures in answer can only have the same amount of each of the following: ___________________________ as the number with a. 11 soccer players c. 10800 m the amount of significant figures. b. 0.070020 m d. 5.00 m3 Sample Exercise 4. Solve each of the following and express your Perform the following operations. Give the answer with the correct number of significant answers to the correct number of significant figures. figures. a. 0.00072 x 1800 = 7.55 m x 0.34 m = b. 0.912 0.047 = – Practice Exercise c. 54000 x 3500000000 = Solve each problem and report your answer with the correct amount of significant figures. Section 3.2 The International System of – 2.10 m x 0.70 m = The International system of Units (SI) is a revised version of the that 8432 m / 12.5 = scientists use around the world. Section 3.1 Assessment 1. How are accuracy and precision evaluated? are used to show a very __________ or quantity. 2. A technician experimentally determined the For your prefixes it is important to remember boiling point of octane to be 124.1oC. The the following: actual boiling point of octane is 125.7oC. Calculate the error and the percent error.
When , your answer can only have the same amount of ___________________________ as the number with the amount of significant figures. Sample Exercise Perform the following operations. Give the answers to the correct number of significant figures. 7.55 m x 0.34 m = Practice Exercise Solve each problem and report your answer with the correct amount of significant figures. 2.10 m x 0.70 m = 8432 m / 12.5 = Section 3.1 Assessment 1. How are accuracy and precision evaluated? 2. A technician experimentally determined the boiling point of octane to be 124.1oC. The actual boiling point of octane is 125.7oC. Calculate the error and the percent error. 3. Determine the number of significant figures in each of the following: a. 11 soccer players c. 10800 m b. 0.070020 m d. 5.00 m3 4. Solve each of the following and express your answer with the correct number of significant figures. a. 0.00072 x 1800 = b. 0.912 – 0.047 = c. 54000 x 3500000000 = Section 3.2 – The International System of The International system of Units (SI) is a revised version of the that scientists use around the world. are used to show a very __________ or quantity. For your prefixes it is important to remember the following:
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