#### Transcript of 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

Full transcript