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SI UNITS A Logical Way to Measure! - PowerPoint PPT Presentation


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SI UNITS A Logical Way to Measure!. A number alone is meaningless:. 5 blocks from Here?. Meet me in 5…. 5 Minutes?. DISTANCE. TEMPERATURE. I. Standard Units of Measurement. Systeme International – we let the French name it BASE 10 system – 10, 100, 1000 etc.

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Presentation Transcript
slide2

A number alone is meaningless:

5 blocks from Here?

Meet me in 5….

5 Minutes?

i standard units of measurement
I. Standard Units of Measurement
  • Systeme International – we let the French name it
  • BASE 10 system –
    • 10, 100, 1000 etc.
    • based on metric system
metric conversion staircase method
METRIC CONVERSION (STAIRCASE METHOD)

To convert to a smaller unit, move

decimal point to the right

Kilo

1000

units

Hecto

100

units

Deka

10

units

Basic

Unit

deci

0.1

units

centi

0.01

units

milli

0.001

units

To convert to a larger unit, move

decimal point to the left

remember
Remember?

“King Henry Died by drinking chocolate milk”

(Kilo) (Hecta) (Deca) (base) (deci) (centi) (milli)

a si prefix conversions
A. SI Prefix Conversions

0.2

1) 20 cm = ______________ m

2) 0.032 L = ______________ mL

3) 45 Km =

______________ mm

4) 805 dm = ______________ Km

32

0

0

0

0

0

0

45,000,000

0.0805

0

derived units
Derived units
  • Multiply or divide standard units.
  • Exs:
  • Volume:
  • cm3
  • Density:
  • grams/cm3
graphing
Graphing
  • Visual display of information or data
  • Type used depends on type of data
slide13

I) Line graph

  • Show trends or changes over time
  • Independent variable on the x-axis (horizontal)
  • Dependent variable d on the y-axis (vertical)
slide15

II) Bar graphs

  • Compare counted information
  • Bars not connected (discrete)
slide16

III) Circle graph

  • Show how some quantity is broken down into parts
slide17
Exs:
  • DATA: # freshman, sophomores etc. at KHS in 2009
  • GRAPH:
  • BAR
  • DATA:# of freshman, sophomores etc as percent of total students at KHS in 2009
  • GRAPH:
  • CIRCLE