Scientific Notation

What is scientific notation?
A short hand way of writing very large and very small numbers.

500,000,000,000 = 5.0 X 10(11)

.0000000000245 = 2.45 X 10(-11)
All of the metric system is based on the #10

Everything is either X or / by 10

all you are really doing is moving the decimal to the right of to the left
Quick rounding rules:

0 : does not get rounded
1-4 : round down to nearest tenth
5 : stays the same
6-9: round up to nearest tenth

All numbers are between:

1.0 and 9.95 times (X) 10 ( 1- anything)

only place two #'s right of the decimal
if 2nd # is a zero it can be dropped
if 2nd # is 5 do not round anything

examples hand written on smart board
SI or metric system
UNITS:

VOLUME is expressed in
Liters (l)
usually liquid volume can also be the space in a box WxLxH
(m) cubed-x3

DISTANCE is expressed in
Meters (m)

MASS is expressed in
Grams (g)

TIME is expressed in
seconds (s)

FORCE is expressed in
Newtons (n)

http://www.unc.edu/~rowlett/units/sipm.html
Base unit-- right side is smaller
left side is larger-- Base unit

Kilo 1000- Hecto 100- Deka 10--Meter--deci 10th-cent-100th-milli 1000th
Scientific Notation
&
Metric system (SI)
Let's try some examples