1. Tuesday, 8/27 Physics Basics Part 1 Scientific Notation

2. Tuesday, 8/27 – Scientific Language  Find your seat and take out something to write with and paper (in your spiral or in your binder).

3. Scientific Notation  Scientific notation is how we write very large or very small numbers.  This allows us to easily read and record numbers.  Example: 0.000000045 is the same as 4.5x10 - 8 Standard notation Scientific notation

4. How to read exponents  If the exponent is positive it indicates a large number  Positive exponents tell you how many zeros to add to the right of the number.  Example:1.2 x10 3 = 1,200  If the exponent is negative it indicates a small number  Negative exponents tell you how many times to move the decimal to the left.  Example: 6.1 x 10 -3 = 0.0061

5. Writing Scientific Notation  When writing scientific notation, only one digit is on the left of the decimal.  Example: 3.45 x 10 5 not 34.5 x 10 4

6. Practice Write the following numbers in scientific notation: 1. 12,756 km (diameter of the earth) 2. 702,000,000 3..082 4..000000000087

7. Practice Write the following numbers in scientific notation: 1. 12,756 km = 1.2756 x 10 4 2. 702,000,000 = 7.02 x 10 8 3..082 = 8.2 x 10 -2 4..000000000087 = 8.7 x 10 -11

8. Practice Write the following numbers in standard notation: 1. 5.902 x 10 -4 2. Speed of light 3 x 10 8

9. Practice Write the following numbers in standard notation: 1. 5.902 x 10 -4 =.00059020 2. Speed of light 3 x 10 8 = 300000000

10. Order of Operation  Numbers that are next to each other are multiplied.  Example: 9x or (9)(9)  Numbers that are in fraction form are divisible.  Example: represent 3 divided by 5.  Pulling the concepts together 3535 5252 ( ) 6 1.Which one or ones are in the multiplication position? 2.Which one or ones are in the division position? 3.Let’s solve it together

11. Practice Solve the following: 1. 3 2. 8 4545 4242

12. Practice Solve the following: 1. 3 2. 8 4545 4242 = 2.4 =16.0