Basically deals with requirement ,types of measurement system with Applications.

1. MEASUREMENT SYSTEM

2. WHAT IS MEASUREMENT
• MEASUREMENT IS THE PROCESS OF
COMPARING A GIVEN QUANTITY OF THINGS TO
THAT OF PRE DEFINED QUANTITY.
• EXAMPLE: MEASURING A LINE WITH
RULER,WEIGHING VEGETABLES WITH IRON
BLOCKS(1 KG,2 KG,5 KG), WEIGHING SCALE.
RULER WEIGHING MACHINE

3. NEED OF MEASUREMENT
SYSTEM
• MEASUREMENTS ARE THERE TO PROVIDE MEANS FOR
EITHER COMPARING 2 OR MORE ENTITIES (MAY BE PHYSICAL
OR LOGICAL).
• EXAMPLE: SOMETHING IS
GREATER/SMALLER/BRIGHTER/FARTHER/
HEAVIER/LIGHTER/FASTER THAN SOMETHING BUT BY WHAT
AMOUNT. THERE MUST BE SOME STANDARD SCALE FOR ALL
THESE ENTITIES.
• SECONDLY TO INDICATE THE EXACT QUANTITY OF ANY
ENTITY.
• EXAMPLE: MOON IS AT VERY LARGER DISTANCE FROM EARTH
BUT EXACTLY HOW MUCH. I NEED TO BUY SOME QUANTITY
OF FOOD, WHEAT AND GRAINS FROM SHOP KEEPER, BUT
AGAIN WHAT QUANTITY.. (ESPECIALLY WHILE YOU ARE
ORDERING THROUGH TELEPHONE… IMAGINE WHAT WILL
HAPPEN IF YOU DON’T HAVE MEASUREMENTS LIKE GRAM,
MILI-GRAM, KILOGRAM, POUNDS… ETC).

4. TYPES OF MEASUREMENT
SYSTEM
THERE ARE VARIOUS TYPES OF MEASUREMENT SYSTEMS:
1. FPS UNIT SYSTEM( FOOT,POUND,SECOND) USED IN
BRITAIN BEFORE INTRODUCTION OF SI UNITS.
2. MKS SYSTEM (METER, KILOGRAM ,SECONDS) USED IN
FRANCE
3. CGS SYSTEM(CENTIMETER,GRAM SECONDS) USED IN
FRANCE
4. SI SYSTEM (SYSTEM INTERNATIONAL)
MODIFIED FORM OF MKS UNITS, USED TODAY

5. S.I SYSTEM OF UNITS
QUANTITY UNITS
LENGTH m(METRE)
WEIGHT kg(KILOGRAM)
TIME s(SECONDS)
TEMPERATURE K(KELVIN)
AMOUNT OF SUBSTANCE mole(MOLES)
ELECTRIC CURRENT A(AMPERE)
INTENSITY OF RADIATION cd(CANDELA)
ANGLE rd(RADIAN)

6. APPLICATIONS
THERMOMETER:
1. A THERMOMETER IS A DEVICE THAT MEASURES
TEMPERATURE GRAIDENT(DIFFERENCE).
2. IT HAS TWO IMPORTANT PARTS:
i. BULB
ii. SCALE INDICATOR

7. APPLICATIONS
RAIN GAUGE
1. A RAIN GAUGE IS AN INSTRUMENT USED
BY METEOROLOGISTS AND HYDROLOGISTS TO
MEASURE PRECIPITATION (E.G. RAIN, SNOW, HAIL OR
SLEET) IN A CERTAIN AMOUNT OF TIME. IT IS USUALLY
MEASURED IN MILLIMETRES.

8. THANK YOU