Transcript METRIC SYSTEM - Zachary High School

METRIC SYSTEM
MEASUREMENT SYSTEM
IN SCIENCE
 A DECIMAL SYSTEM (BASED
ON UNITS OF 10)
 DEVELOPED BY A FRENCH
MATHEMATICIAN NAMED
GABRIEL MOUTON
 aka SYSTEME’
INTERNATIONAL (SI)
HOW IT WORKS
 BASIC UNITS (BU) OF MEASURE
 1) METER (m)
MEASURES LENGTH
 2) LITER (L)
MEASURES VOLUME
3) GRAM (g)
MEASURES MASS
4) TIME (sec)
MEASURES INTERVAL
BETWEEN EVENTS
**THERE ARE MANY
MORE
PREFIXES ARE USED TO SHOW
MAGNITUDE (SIZE).
LARGE PREFIXES (GREATER THAN BU)
12
TERA (T) 1 X 10
(TRILLION)
GIGA (G) 1 X 109 (BILLION)
MEGA (M) 1 X 106 (MILLION)
3
KILO (k) 1 X 10 (THOUSAND)
2
HECTO (h) 1 X 10 (HUNDRED)
1
DECA (da) 1 X 10 (TEN)
SMALL PREFIXES (LESS THAN BU)
•
•
•
•
-1
10
DECI (d) 1 X
(TENTH)
-2
CENTI (c) 1 X 10 (HUNDREDTH)
MILLI (m) 1 X 10-3 (THOUSANDTH)
-6
MICRO (μ) 1 X 10 (MILLIONTH)
-9
10
• NANO (n) 1 X
(BILLIONTH)
-12
• PICO (p) 1 X 10
(TRILLIONTH)
METRIC CONTINUUM
“NUMBER” LINE OF THE
METRIC PREFIXES
 EACH SPACE IS A UNIT OF
TEN (1 SPACE = 10,
3 SPACES = 1000)

TO CONVERT BETWEEN UNITS
USING THE METRIC CONTINUUM
1. FIND STARTING PREFIX ON
NUMBER LINE
 2. MOVE ALONG NUMBER LINE TO
NEW PREFIX (NOTE THE DIRECTION
& NUMBER OF SPACES YOU MOVED)
 3. MOVE THE DECIMAL TO ITS NEW
POSITION

EX: 75 cm = ? nm
START AT c, MOVE TO THE RIGHT
TO n. YOU MOVED 7 SPACES.
 MOVE THE DECIMAL FROM
ORIGINAL POSITION 7 SPACES
TO THE RIGHT.

 75
cm = 750 000 000 nm
ORIGINAL
DECIMAL
MOVED ORIGINAL
DECIMAL TO NEW
POSITION
PRACTICE PROBLEMS
 COPY AND WORK.
 1) 345 g = ? µg
 2) 0.0042 mm = ? dam
 3) 47.09 kL = ? GL