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S.I UNIT
Meaning
LENGTH:metres
Mass:kilogram
Temperature:kelvin
Time:second
Mass:quantity of matter in a body
vol: amt. of space an object occupies
Length: distance between two specified pt.
Melting pt.
changes in state from solid to liquid
Boiling point
changes in state from liquid to gas
Measurement
Physical Properties Of Matter
Length:metre rule, measuring tape, vernier calliper
Mass:beam balance, electronic balance
Volume:measuring cylinder/displacement can
1.HARDNESS
2.FLEXIBILITY
3.MELTING POINT
4.BOILING POINT
5.STRENGTH
6.THERMAL CONDUCTIVITY
7.ELECTRICAL CONDUCTIVITY
8.DENSITY
Strength And Thermal Conductivity
Flexibility And Hardness
Strength:
Ability to support heavy loads
Thermal conductivity:
how the particular material is able to retain heat
GOOD CONDUCTOR:ALSO HEAT TO BE EASILY PASSED
POOR CONDUCTOR:OPPOSITE
Flexibility
- bend without breaking
- return to its original size and shape after breaking
Hardness
- withstand scratches
ELECTRICAL CONDUCTIVITY/DENSITY
ELECTRICAL CONDUCTIVITY
HOW READILY ELECTRICITY IS ABLE TO PASS THROUGH
GOOD CONDUCTOR/BAD INSULATOR
ABLE TO PASS THROUGH ELECTRICITY FASTER
OPPOSITE
DENSITY:
QUANTITY OF MATTER PACKED INTO A UNIT VOLUME
ALWAYS FIND MASS AND VOL. FIRST
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