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PHYSICAL QUANTITY
D
E
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BASIC QUANTITYD
E
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DERIVED QUANTITY
D
E
NEXT
SLIDE
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E
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D
DESCRIBE
MEASUREMENT
QUANTITY
THATS TOO LARGE
@
TOO SMALL
E
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D
E
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0.0000000002345
SIMPLIFY THE NUMBER TO STANDARD FORM
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D CHANGE OF UNIT
E
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CONVERT THE UNIT
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PHYSICAL
QUANTITY
D
D
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E SCALARQUANTITY
VECTOR
QUANTITY
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MEASUREMENT
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m3
LENGTH, (m)BREADTH, (m)
HEIGHT, (m)
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MASS, (kg)
VOLUME,(m3)
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D
E
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D
E
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D
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NOT PRECISE
&
NOT ACCURATE
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NOT PRECISE
&
NOT ACCURATE
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PRECISE
&
ACCURATE
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PRECISE
&
NOT ACCURATE
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D D
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TIME TAKEN FOR 20OSCILLATION
t1
(s)
t2
(s)
Mean
t
Period
T=t/20
(s)
20.0 18 18 18 0.9
40.0 24 24 24 1.2
60.0 30 30 30 1.5
80.0 36 36 36 1.7
100.0 42 42 42 1.8
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