Scientific Notation and Significant Figures

Apuntes

[Diapositiva 1] Figure 1.13 [Diapositiva 2] Figure 1.13b [Diapositiva 3] Figure 1.13a [Diapositiva 4] Figure 1.13c [Diapositiva 5] The Earth is Flat 5 [Diapositiva 6] System Regulation Feedback loop – when output of matter, energy, or information is fed back into the system as an input that changes the system. Positive Feedback – causes change in the same direction Negative Feedback – one change leads to a lessoning of that change. 6 [Diapositiva 7] 7 [Diapositiva 8] “ No number of experiments can prove me right; a single experiment can prove me wrong.” Albert Einstein [Diapositiva 9] 9 Scientific Notation Scientific Notation is used to write very large or very small numbers. for the width of a human hair of 0.000 008 m is written 8 x 10 -6 m. of a large number such as 4 500 000 s is written 4.5 x 10 6 s. [Diapositiva 10] 2.3 Scientific Notation Scientific notation works by expressing very small or very large numbers as the product of two numbers that are individually much easier to deal with . The first number is called the base . The second number is a power of ten . The base is usually written with only one digit in front of the decimal point. ex. 2,500 would be written 2.5 × 10...