The universally accepted system of measurement is the SI System the System Internationale dUnites or the International System also known as the metric system The metric system is based on the unit ID: 569791
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Slide1
Conversions
The universally accepted system of measurement is the SI System, the System Internationale d’Unites, or the International System, also known as the metric system. The metric system is based on the unit ________.
http://www.teamtechnology.co.uk/balance.jpgSlide2
Base Units of MeasurementMeasurementBase Unit
SymbolLength/Distance
meter
m
Mass
gram
g
Temperature
Kelvin
K
Volume
liter
L
Time
second
s
Energy
Joule
J
Speed
meter per second
m/s
Frequency
1/second
Hz
Density
grams/milliliter
g/mL
Pressure
Pascal
PaSlide3
Practice!!NumberMeasurement
0.00965 kgmass
940500 Mm
409000000 ps
0.0003400 J
780000. Pa
5.600 g/mL
0.000450
m
L
9203000000 kJ
0.0300 mg
600 K
0.01 kmSlide4
How the Base Unit Works
Kilo
Base Unit (m, l, g, etc)
Centi
Milli
Micro
1
1000
0.01
0.001
0.000001
10
3
10
0
10
-2
10
-3
10
-6Slide5
SI PrefixesPrefixSymbol
MeaningMega
M
10
6
Kilo
k
10
3
Base
--
10
0
centi
c10-2
millim
10-3micro
m10-6
nanon
10-9pico
p10-12Slide6
SI Unit Conversions
Convert 3450 cm to km.
3450 cm
10
5
1
= 3450 x 10
-5
km or 3.45 x 10
-2
km
Convert 0.0036 g to
m
g.
0.0036 g
1
10
6
= 0.0036 x 10
6 mg or 3.6 x 103 mg
Convert 8.9 x 10-8 s to ps.
8.9 x 10-8 s
1
cm
km
m
g
g
s
ps
10
12
= 8.9 x 10
4
psSlide7
Practice with ConversionConvert the following:23.2 m = ______ cm93.71m = ______ km920,000 µm = _________m3.6 x 10-11 ML = _________ L1.41 x 1014 pg = ________g16.0 ns = ________ sSlide8
Practice with Dimensional AnalysisIn Raiders of the Lost Ark, Indiana Jones tried to remove a gold idol from a booby-trapped pedestal. He replaces the idol with a bag of sand. If the idol has a mass of 2.00 kg, how many litres of sand must he place on the pedestal to keep the mass sensitive booby-trap from activating? (Density of sand is 3.00 g/cm3)Slide9
Practice with Dimensional AnalysisAt a given point in its orbit, the moon is 2.4 x 105 miles from earth. How long does it take light from a source on earth to reach a reflector on the moon and then return to earth? (speed of light is 3.0 x 108 m/s) Conversions: 1 mi- 5280ft 2.54cm = 1in.