QuantityBase UnitUnit Abbreviation 1. Time 2. Mass 3. Temperature 4. Length 5. Amount of a...
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Transcript of QuantityBase UnitUnit Abbreviation 1. Time 2. Mass 3. Temperature 4. Length 5. Amount of a...
Quantity Base Unit
Unit Abbreviati
on1. Time
2. Mass
3. Temperature
4. Length
5. Amount of a substance
Prefix Abbreviation
Equals Scientific Notation
giga G
mega M
kilo k
deci d
centi c
milli m
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M
kilo k
deci d
centi c
milli m
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 ?
kilo k
deci d
centi c
milli m
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 ?
deci d
centi c
milli m
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 ?
centi c
milli m
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 10-1
centi c 1/100 (0.01) ?
milli m
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 10-1
centi c 1/100 (0.01) 10-2
milli m 1/1000 (0.001)
?
micro µ
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 10-1
centi c 1/100 (0.01) 10-2
milli m 1/1000 (0.001)
10-3
micro µ 1/1,000,000 (0.000001)
?
nano n
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 10-1
centi c 1/100 (0.01) 10-2
milli m 1/1000 (0.001)
10-3
micro µ 1/1,000,000 (0.000001)
10-6
nano n 1/1,000,000,000 (0.000000001)
?
pico p
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 10-1
centi c 1/100 (0.01) 10-2
milli m 1/1000 (0.001)
10-3
micro µ 1/1,000,000 (0.000001)
10-6
nano n 1/1,000,000,000 (0.000000001)
10-9
pico p 1/1,000,000,000,000
?
Prefix Abbreviation
Equals Scientific
Notation
giga G 1,000,000,000
109
mega M 1,000,000 106
kilo k 1000 103
deci d 1/10 or 0.1 10-1
centi c 1/100 (0.01) 10-2
milli m 1/1000 (0.001)
10-3
micro µ 1/1,000,000 (0.000001)
10-6
nano n 1/1,000,000,000 (0.000000001)
10-9
pico p 1/1,000,000,000,000
10-12
Base units are defined units based on an object or event in the physical world:
1.Meter = distance light travels through a vacuum in 1/299,792,458 of a second (or 2.99792458 x 10-8 seconds)
2.Kilogram = mass of a platinum-iridium cylinder that is stored at constant temperature and humidity
Units made up of a combination of base units:
1.Speed = meters/second2.Volume =
1. cubic meter (m3) or cubic centimeter (cm3)
2. Liter (or cubic decimeter – dm3)3. How is this a combination of base units?
3.Density = mass/volume (g/mL or g/cm3 )
You have a cylinder with a volume of 150 mL and a mass of 75 g. What is its density?
1.Known values:1. V = 150 mL2. m = 75 g
2.Formula1. Density = mass/volume = 75 g/150 mL2. Density = 0.5 g/mL
If d=m/V, rearrange the formula to solve for m. m = ?
If d = m/V, rearrange the foemula to solve for V. V = ?
Example Problem (p.29) Assignment: Practice Problems
(p.29)