Which instrument is used to measure mass precisely?

Which instrument is used to measure mass precisely?

• A. Ruler
• B. Triple beam balance
• C. Beaker
• D. Buret

Answer: (B)

Precise mass measurement comes from a device that compares an object's mass to known standard masses on a balance. A triple beam balance does exactly that: it has three sliding weights on separate beams that you adjust until the object on the pan is in balance. The positions of the sliders on all three beams are read and summed to give the mass with high precision, often to hundredths or thousandths of a gram. This approach is different from a ruler, which measures length; a beaker, which estimates volume of liquids; and a buret, which measures the volume of liquid delivered. So, for measuring mass precisely, the triple beam balance is the best choice.

Precise mass measurement comes from a device that compares an object's mass to known standard masses on a balance. A triple beam balance does exactly that: it has three sliding weights on separate beams that you adjust until the object on the pan is in balance. The positions of the sliders on all three beams are read and summed to give the mass with high precision, often to hundredths or thousandths of a gram. This approach is different from a ruler, which measures length; a beaker, which estimates volume of liquids; and a buret, which measures the volume of liquid delivered. So, for measuring mass precisely, the triple beam balance is the best choice.