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

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

Convert 2 kg to mg :

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