Measurement Systems
The SYSTEM INTERNATIONAL
Measurement System
• Why do we need a
measurement system?
Measurement System
• To record the answers to q u e s t i o n s
like
–how fast
–how far
–how much
A measurement system provides
quantitative data
• Quantitative means a number is used
• Qualitative data:
– It turned red
– It is cold
– It started steaming
Measurement System
• What is a measurement
“ s t a n d a r d” ?
Standard
• Allows scientists to compare
results
• Never varies
The International System
• The unit of length...Meter
•
•
•
•
The unit of mass...Gram
The unit of volume...Liter
T h e u n i t o f t e m p . . . 0C e l s i u s
The unit of time...Second
•
Prefixes
Mega
• Kilo
• Centi
• Milli
•
1 000 000
• 1 000
• 0.01
• 0.001
•
Conversions
• King Henry Died By
Drinking Chocolate Milk
=============================================
Kilo Hecto Deca
Base
Unit
Problem – Convert 22cm to meters.
Deci
Centi
Milli
Conversions
• King Henry Died By
Drinking Chocolate Milk
=============================================
Kilo Hecto Deca
Base
Unit
Start at CENTI
Deci
Centi
*
Milli
Conversions
• King Henry Died Monday Drinking Chocolate Milk
=============================================
Kilo Hecto Deca
Base
Deci
*
Unit
2
Centi
1
Move 2 Spaces to the left – to base unit (which in this case is
METER)
Milli
Conversions
• King Henry Died Monday Drinking Chocolate Milk
=============================================
Kilo Hecto Deca
Base
Deci
Centi
Unit
Each move to the left represents a division by 10.
DIVIDE 22 by 10 twice (or divide once by 100)…….
22 divided by 100 = 0.22
22cm=0.22m
Milli
Conversions
• King Henry Died Monday Drinking Chocolate Milk
=============================================
Kilo Hecto Deca
Base
Deci
Centi
Unit
If the problem requires you to move to the RIGHT then you
MULTIPLY by 10 as many times as you moved to the right
Milli
Make a Chart in Your Notes
5 Columns
7 Rows
• Make the spaces big enough to write in
Insert Headings for the Columns
BASE UNIT
TYPE OF
MEASUREMENT
FORMULA
TOOL
Insert Row Titles:
BASE UNIT
LENGTH
AREA
VOLUME OF A
REGULAR SOLID
VOLUME OF A
FLUID
VOLUME OF AN
IRREGULAR
SOLID
MASS
TYPE OF
MEASUREMENT
FORMULA
TOOL
What is the base unit used when
measuring length?
BASE UNIT
LENGTH
AREA
VOLUME OF A
REGULAR SOLID
VOLUME OF A
FLUID
VOLUME OF AN
IRREGULAR
SOLID
MASS
Meter (m)
TYPE OF
MEASUREMENT
FORMULA
TOOL
A DIRECT MESUREMENT is
taken when the measurement can
be read directly off the tool – no
math is required.
Is the measurement of length a
DIRECT or an Indirect measurement?
BASE UNIT
LENGTH
AREA
VOLUME OF A
REGULAR SOLID
VOLUME OF A
FLUID
VOLUME OF AN
IRREGULAR
SOLID
MASS
TYPE OF
MEASUREMENT
Meter (m) DIRECT
FORMULA
TOOL
No Formula Required!
So, Leave the Formula Cell
Blank.
What Tool is used to measure length?
BASE UNIT
LENGTH
AREA
VOLUME OF A
REGULAR SOLID
VOLUME OF A
FLUID
VOLUME OF AN
IRREGULAR
SOLID
MASS
TYPE OF
MEASUREMENT
Meter (m) DIRECT
FORMULA
TOOL
METER
STICK
As I Demonstrate the Use of the
Tools – Fill in Your Chart As We
Go
BASE UNIT
TYPE OF
MEASUREMENT
LENGTH
Meter (m) DIRECT
AREA
Meter2
VOLUME OF A
REGULAR SOLID
VOLUME OF A
FLUID
VOLUME OF AN
IRREGULAR
SOLID
MASS
INDIRECT
FORMULA
TOOL
METER
STICK
L*W
METER
STICK
BASE UNIT
TYPE OF
MEASUREMENT
FORMUL
A
TOOL
LENGTH
Meter (m) DIRECT
AREA
Meter2
INDIRECT
L*W
METER
STICK
VOLUME OF A
REGULAR SOLID
Meter3
INDIRECT
L*W*H
METER
STICK
VOLUME OF A
FLUID
VOLUME OF AN
IRREGULAR
SOLID
MASS
METER
STICK
BASE UNIT
TYPE OF
MEASUREMENT
FORMUL
A
TOOL
LENGTH
Meter (m) DIRECT
AREA
Meter2
INDIRECT
L*W
METER
STICK
VOLUME OF A
REGULAR SOLID
Meter3
INDIRECT
L*W*H
METER
STICK
VOLUME OF A
FLUID
Liter (l)
DIRECT
VOLUME OF AN
IRREGULAR
SOLID
MASS
METER
STICK
GRADUATED
CYLINDER
BASE UNIT
TYPE OF
FORMULA
MEASUREMENT
TOOL
LENGTH
Meter (m)
DIRECT
METER
STICK
AREA
Meter2 (m2)
INDIRECT
L*W
METER
STICK
VOLUME OF A
REGULAR SOLID
Meter3 (m3)
INDIRECT
L*W*H
METER
STICK
VOLUME OF A
FLUID
Liter (l)
DIRECT
VOLUME OF AN
IRREGULAR
SOLID
Liter (l)
INDIRECT
MASS
GRADUATED
CYLINDER
Final volume
– Initial Vol
GRADUATED
CYLINDER
BASE UNIT
TYPE OF
FORMULA
MEASUREMENT
TOOL
LENGTH
Meter (m)
DIRECT
METER
STICK
AREA
Meter2 (m2)
INDIRECT
L*W
METER
STICK
VOLUME OF A
REGULAR SOLID
Meter3 (m3)
INDIRECT
L*W*H
METER
STICK
VOLUME OF A
FLUID
Liter (l)
DIRECT
VOLUME OF AN
IRREGULAR
SOLID
Liter (l)
INDIRECT
MASS
Gram (g)
DIRECT
GRADUATED
CYLINDER
Final volume
– Initial Vol
GRADUATED
CYLINDER
Balance
There is a lab set up at the rear of
the room
• Wait for further instructions