5. LEARNING OBJECTIVES
• TO KNOW THE IMPORTANCE OF THE ACCURACY OF
MEASUREMENTS
• TO WRITE THE SI UNITS OF THE MEASUREMENT OF
BASIC UNITS (7)AND DERIVED UNITS(22)
• TO KNOW THE SYMBOLS OF MEASURING UNIT AND
ITS QUALITIES.
• TO HANDLED THE MEASURING INSTRUMENTS LIKE
VERNIER CALLIPER AND SCREW GAUGE AND
DETERMINING THEIR MEASUREMENTS.
• TO KNOW AND MEASURE OF MASS AND WEIGHT
USING PHYSICAL AND SPRING BALANCES
கல்வி அமுது
http://kalviamuthu.blogspot.com
10. COMPARISION OF OTHER UNITS
• ONE FEET =30.4 cm
• 1meter =3.2 feet
• One inch =2.54 cm
• 1m =40 inches(approx.)
• 1metric tonn =1000 kg
• 1 kuvindol =100 kg
• 1TMC=thousand milllion cubic feet=2.83*10^10 LITRE
OR 3000 CRORE LITRE.
• TEMPERATURE CONVERSION
C/100=(F-32)/180=(K-273)/100
LEAST COUNT (L.C)
• VERNIER CALLIPER =0.01 cm
• SCREW GAUGE =0.01 mm
கல்வி அமுது
http://kalviamuthu.blogspot.com
34. AU- MARS VS EARTH
கல்வி அமுது
http://kalviamuthu.blogspot.com
35. ASTRONOMICAL MEASUREMENT
• 1LIGHT YEAR=VELOCITY OF LIGHT*1YEAR
= 3X10 ^8 X365.25X24X60X60
=9.46X10^15 m
1 ASTRONOMICAL UNIT (AU)=1.496X10^11 m
• 1Parsec=3.26 light years
கல்வி அமுது
http://kalviamuthu.blogspot.com