notes – systems of measurement
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Assign #30 pts. Notes – Systems of Measurement. Notes – Systems of Measurement. Metric or SI system (System de Internationale) Universal System of Measurement. Metric or SI system (System de Internationale). Parameters of measure : 1) Mass ( Weight) 2) Volume - PowerPoint PPT PresentationTRANSCRIPT
Notes – Systems of Measurement
Assign # 30 pts.
• Metric or SI system (System de Internationale)
• Universal System of Measurement
Notes – Systems of Measurement
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass
(Weight)2) Volume 3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass
(Weight)2) Volume 3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass
(Weight)2) Volume 3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass
(Weight)2) Volume 3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight)2) Volume 3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight) – Amount of gravitational pull (Force = N)2) Volume 3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight) – Amount of gravitational pull (Force = N)
2) Volume – Amount of space a substance takes up.3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight) – Amount of gravitational pull (Force = N)
2) Volume – Amount of space a substance takes up.3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight) – Amount of gravitational pull (Force = N)
2) Volume – Amount of space a substance takes up.3) Length 4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight) – Amount of gravitational pull (Force = N)
2) Volume – Amount of space a substance takes up.3) Length – Distance4) Temperature
Metric or SI system (System de Internationale)
Parameters of measure:1) Mass – Amount of matter in a substance
(Weight) – Amount of gravitational pull (Force = N)2) Volume – Amount of space a substance takes up.3) Length – Distance4) Temperature – How fast particles are moving
Basic Units of Measure
1) Mass = kilogram (kg)(Weight)
2) Volume 3) Length 4) Temperature
Basic Units of Measure
1) Mass = kilogram (kg) (Weight) = Newton (N)
2) Volume 3) Length 4) Temperature
Basic Units of Measure
1) Mass = kilogram (kg) (Weight) = Newton (N)
2) Volume = Liter (L)3) Length 4) Temperature
Basic Units of Measure
1) Mass = kilogram (kg) (Weight) = Newton (N)
2) Volume = Liter (L)3) Length = meter (m)
4) Temperature
Basic Units of Measure
1) Mass = kilogram (kg) (Weight) = Newton (N)
2) Volume = Liter (L)3) Length = meter (m)4) Temperature = Celsius or Centigrade (oC)
(metric) or Kelvin (K)
(SI)
Prefixes- Universal precursors
• M = mega-• k = kilo-• d = deci-• c = centi-• m = milli-
Prefixes- Universal precursors
• M = mega- = x 1 000 000– MHz
• k = kilo-• d = deci-• c = centi-• m = milli-
Prefixes- Universal precursors
• k = kilo- = x 1000kg kL km
• d = deci-• c = centi-• m = milli-
Prefixes- Universal precursors
• k = kilo- = x 1000kg kL km
• d = deci- = 1/10 or .1 dg dL
dm• c = centi-• m = milli-
Prefixes- Universal precursors
• k = kilo- = x 1000 kgkL km
• d = deci- = 1/10 or .1dg dL dm
• c = centi- = 1/100 or .01cg cL cm
• m = milli-
Prefixes- Universal precursors
• k = kilo- = x 1000 kgkL km
• d = deci- = 1/10 or .1dg dL dm
• c = centi- = 1/100 or .01cg cL cm
• m = milli- = 1/1000 or .001 mg mLmm
Equivalents for Estimation
• Mass -1 gram = 1 raisin
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of
soup
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of soup1 kilogram = 1 pair of
shoes
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of soup1 kilogram = 1 pair of
shoes• Length–1 millimeter = thickness of a
dime
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of soup1 kilogram = 1 pair of
shoes• Length–1 millimeter = thickness of a
dime1 centimeter = width of little
finger nail
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of soup1 kilogram = 1 pair of shoes• Length–1 millimeter = thickness of a
dime1 centimeter = width of little
finger nail1 meter = 1 golf club
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of soup1 kilogram = 1 pair of shoes• Length–1 millimeter = thickness of a
dime1 centimeter = width of little
finger nail1 meter = 1 golf club1 kilometer = 5 city blocks
5 city blocks
Equivalents for Estimation
• Mass -1 gram = 1 raisin500 gram = 1 can of soup1 kilogram = 1 pair of shoes• Length–1 millimeter = thickness of a
dime1 centimeter = width of little
finger nail1 meter = 1 golf club1 kilometer = 5 city blocks
• 10 km = 6.2 miles100 km =1000 km = 1 km =
• Volume –1 liter = 1 medium milk
carton (quart)
Equivalents for Estimation
• Volume –1 liter = 1 medium milk
carton (quart)1 milliliter = contents of
one eyedropper (15 drops)
Equivalents for Estimation
• Volume –1 liter = 1 medium milk
carton (quart)1 milliliter = contents of
one eyedropper (15 drops)
5 milliliters = 1 teaspoon
Equivalents for Estimation
• Volume –1 liter = 1 medium milk
carton (quart)1 milliliter = contents of
one eyedropper (15 drops)
5 milliliters = 1 teaspoon1 mL = 1 cubic centimeter (cc or cm3)
Equivalents for Estimation
• Volume –1 mL = 1 cubic centimeter (cc or cm3)1 L = 1000 cm3
Equivalents for Estimation
• Volume –1 mL = 1 cubic centimeter (cc or cm3)1 L = 1000 cm3
1 gram of water = 1 cc = 1 mL
Equivalents for Estimation
• Volume –1 mL = 1 cubic centimeter (cc or cm3)1 L = 1000 cm3
1 gram of water = 1 cc = 1 mL
1 L = 1000 g or 1 kg water
Equivalents for Estimation
• TemperatureoC Science
Room temperature = 20-25 oC or 70-75 oF
• SIKelvin = -273.15 oC = 0 K• Coldest possible
temperature = Absolute zero
• Boiling water =100 oC or 212 oF
• Freezing water =0 oC or 32 oF
Equivalents for Estimation
Scientific Notation
• For displaying very large and very small numbers.
• All numbers changed to 2-3 digit power of 10.
1,000,000 = 1 x 106
• 1,000 = 1 x 10?
• .0000000001 = 1 x 10?
Scientific Notation
• For displaying very large and very small numbers.
• All numbers changed to 2-3 digit power of 10.
1,000,000 = 1 x 106
• 1,000 = 1 x 103
• .0000000001 = 1 x 10-10
Scientific Notation
• When multiplying with scientific notation, you add the exponents
• 1,000,000 x 1,000• 1 x 106 x 1 x 103 =
• 1 x 109 • When dividing with
scientific notation, you subtract the exponents
Converting to Scientific Notation
• 1) Numbers are changed to 1- 3 significant digits and a number from 1 to 9
• 2) Uses powers of 10 with exponents to denote power
• 3) Moving decimal to the left increases the exponent number. Moving to the right decreases the number
• 12,345 =
• 100 = 10-1 =• 101 = 10-2 =• 102 = 10-3=
• 10,000 = 1 x 10?
• .0001 = 1 x 10?
Converting to Scientific Notation
• 1) Numbers are changed to 1-3 significant digits and a number from 1 to 9
• 2) Uses powers of 10 with exponents to denote power
• 3) Moving decimal to the left increases the exponent number. Moving to the right decreases the number
• 12,345 = 12,300
• 100 = 1 10-1 = 1/10 or .1
• 101 = 10 10-2 =1/100 or .01
• 102 = 100 10-3= 1/1000 or .001
• 10,000 = 1 x 104
• .0001 = 1 x 10-4
Converting to Standard Notation
• 1) For positive exponents move the decimal to the right the number of exponents
• 2) For negative exponents move the decimal to the left the number of exponents
• 3.46 x 104 =
• 1.23 x 10-5 =
Converting to Standard Notation
• 1) For positive exponents move the decimal to the right the number of exponents
• 2) For negative exponents move the decimal to the left the number of exponents
• 3.46 x 104 =3.46
• 1.23 x 10-5 = 1.23
Scientific Notation• When multiplying with scientific
notation, you add the exponents• 1,000,000 x 1,000• 1 x 106 x 1 x 103 =
• 1 x 109
• When dividing with scientific notation, you subtract the exponents
• 1 x 106 = 106-3 = 1 x 103 • 1 x 103
Dimensional analysis
• The method of treating units as algebraic quantities that can be cancelled.
• Units or factor conversions are multiplied till correct units are displayed
• Unit conversions = 1• - 1 = 1000 mL
1 L
• Convert 2 years to seconds
2 y x__d x __hr x __min x __s 1 y d hr min
Dimensional analysis
• The method of treating units as algebraic quantities that can be cancelled.
• Units or factor conversions are multiplied till correct units are displayed
• Unit conversions = 1• - 1 = 1000 mL
1 L
• Convert 2 years to seconds
2 y x 365 d x 24 hr x 60 min x 60 _s 1 1 y 1 d 1 hr min
Convert 2 kg to g :
Dimensional analysis
• The method of treating units as algebraic quantities that can be cancelled.
• Units or factor conversions are multiplied till correct units are displayed
• Unit conversions = 1• - 1 = 1000 mL
1 L
• Convert 2 years to seconds
2 y x 365 d x 24 hr x 60 min x 60 _s 1 1 y 1 d 1 hr min
Convert 2 kg to g : 2 kg x 1000 g 1 1 kg