Metric System Students will be able to convert between units in the metric system.
Title: Metric System Objective: I will be able to convert from one metric unit to another. Question:...
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Transcript of Title: Metric System Objective: I will be able to convert from one metric unit to another. Question:...
Title: Metric System
Objective: I will be able to convert from one metric unit to another.
Question: What is the metric system and how do I use it?
Notes:
History (no notes)
Built by the French Systeme Internationale d’Unites (SI) Based on powers of 10 Adopted by science community and all other
countries
Base Units (Notes)
Meter (m) Liter (L) Gram (g) Kelvin (K) or Celsius (oC) Second (s)
Metric System Prefix Table
Prefix Symbol Multiplication Factor Power of 10
yotta Y 1,000,000,000,000,000,000,000,000 +24
zetta Z 1,000,000,000,000,000,000,000 +21
exa E 1,000,000,000,000,000,000 +18
peta P 1,000,000,000,000,000 +15
tera T 1,000,000,000,000 +12
giga G 1,000,000,000 +9
mega M 1,000,000 +6
kilo k 1,000 +3
hecto h 100 +2
deka da 10 +1
deci d 0.1 -1
centi c 0.01 -2
milli m 0.001 -3
micro µ 0.000,001 -6
nano n 0.000,000,001 -9
pico p 0.000,000,000,001 -12
femto f 0,000,000,000,000,001 -15
atto a 0,000,000,000,000,000,001 -18
zepto z 0,000,000,000,000,000,000,001 -21
yocto y 0,000,000,000,000,000,000,000,001 -24
SI PrefixesPrefix Unit Abbre. Exponent Expanded Example
Mega M 106 1,000,000 Mm = megameter
Kilo k 103 1,000 km = kilometer
Hecto h 102 100 hg = hectogram
Deka da 101 10 daL = dekaliter
Base Unit
- 100 1 gram, liter, meter, etc..
Deci d 10-1 .1 (1/10) dL = deciliter
Centi c 10-2 .01 (1/100) cm = centimeter
Mill m 10-3 .001 (1/1000) mg = milligram
Micro 10-6 .000001 (1/1,000,000)
L = microliter
Practice Conversion 1Dimensional Analysis Method
Convert 5,876 meters into Mm (megameters):
Practice Conversion 2
Convert 489 mg into grams:
Practice Conversion 3
Convert 386 cg into dag (dekagrams):
If you think about it…
If you are converting from smaller unit to a bigger unit, does the actual number get bigger or smaller? Vice Versa? mm to Mm Mm to mm
What is the relationship between exponential number AND the amount of places the decimal moves?
Shortcut…
-This method is quick and easy, however like most shortcuts it is easier to make mistakes.
Move the decimal the number of places that matches the exponent number you are converting to.
If you are moving up then move decimal to the left.
If you are moving down then move the decimal
to the right.
Volume Conversions
Volume of a Solid or Gas by Meters (L x W x H) = ____ m3, cm3, etc… 3 m x 3 m x 3 m = 27 m3
Volume of a Liquid is in Liters 1 cm3 (cc) = 1 mL
20 cc = 20 mL
Temperature Conversions
Celsius to Fahrenheit (oC x 9/5) + 32 = oF
Fahrenheit to Celsius (oF – 32) x 5/9 = oC
Kelvin to Celsius t(oC) = T(K) – 273.15 K
Celsius to Kelvin T(K) = t(oC) + 273.15oC
Temperature Scales
Degrees Fahrenheit 32oF to 212oF
Degrees Celsius 0oC to 100oC
Kelvin 273K to 373 K) 0K is absolute zero
Coldest temp possible All molecular movement stops Never been achieved, but close
Practice Temperature Conversions
85oF = _______ oC 28oC = ________K
What You Need to Work On:
Memorize abbreviations, prefixes, and their matching numbers (10-6 to 106)
Homework Assignment: Pg 19 # 8 Pg 36 #12-16 Pg 37 #3
Bring Book TOMORROW and Calculator! Next Quiz is Wed. Sept 17th