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 Screw gauge 
ruler
\(1\ mg\)
\(1\ g\)  
mass
length
beam balance
weight
 Vernier caliper 
 time
  Physical balance
\(100\ mg\)  
  
1Metre is the unit of .
 
21 kg of rice is weighed by .
 
3Thickness of a cricket ball is measured by .
 
4Radius of a thin wire is measured by .
 
5A physical balance measures small differences in mass up to .