lecture-ch1 Measurement

# lecture-ch1 Measurement - Fundamental of Physics Textbook...

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Unformatted text preview: Fundamental of Physics Textbook: Fundamental of Physics David Halliday, Robert Resnick and Jearl Walker chapters covered for first semester: Chapter 1-20, Exams: Mid and Final Contents 1 Measurement 1 1.1 The International System of Units (SI) . . . . . . . . . . . . . 1 1.1.1 Scientific notation . . . . . . . . . . . . . . . . . . . . . 2 1.1.2 Significant figures . . . . . . . . . . . . . . . . . . . . . 2 1.1.3 Ambiguity of the last digit in scientific notation . . . . 3 1.2 Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.1 Some Approximate Lengths . . . . . . . . . . . . . . . 4 1.3 Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3.1 Some Approximate Time Intervals . . . . . . . . . . . . 5 1.4 Mass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.4.1 The standard kilogram . . . . . . . . . . . . . . . . . . 5 1.4.2 A second mass standard . . . . . . . . . . . . . . . . . 5 1.4.3 Some Approximate Masses . . . . . . . . . . . . . . . . 6 1 Measurement 1.1 The International System of Units (SI) Factor Prefix Symbol Length meter m Time second s Mass kilogram kg 1 Prefix for SI Units Quantity Unit Name Unit Symbol 10 9 giga- G 10 6 mega- M 10 3 kilo- k 10- 2 centi- c 10- 3 milli- m 10- 6 micro- μ 10- 9 nano- n 10- 12 pico- p 1.1.1 Scientific notation Scientific notation, also known as standard form or as exponential notation, is a way of writing numbers that accommodates values too large or small to be conveniently written in standard decimal notation. Scientific notation has a number of useful properties and is often favored by scientists, mathematicians and engineers, who work with such numbers. In scientific notation all numbers are written like this: a × 10 b (” a times ten to the power of b ”), where the exponent b is an integer, and the coefficient a is any real number whose absolute value is at least one but less than ten (1 ≤ | a | < 10)....
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lecture-ch1 Measurement - Fundamental of Physics Textbook...

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