Q2 of 44 Page 19

Define standard unit.

A standard unit is a reference point by which objects of weight, length, or capacity can be described. Reference point will be fixed everywhere and will not change from person to person or place to place.


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2

Read the passage and answer the questions given below.

Mass is the amount of matter contained in an object. Measurement of mass helps us to distinguish between a lighter and a heavier body. Beam balance, spring balance and electronic balance are used to measure mass of different objects. The SI unit of mass is the kilogram (kg). But different units are used to measure the mass of different objects. E.g. weight (mass) of a tablet is measured in milligrams (mg), weight of a student is measured in kilogram (kg) and weight of a truck with goods is measured in metric tons. 1 metric ton is equal to 10 quintals and 1 quintal is equal to 100 kg. 1 gram is equal to 1000 mg.


How will you measure the weight of a tablet?


 1

Define measurement.

 3

What is the full form of SI system?

 4

Define least count of any device.