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प्रश्न
Name the instrument which is commonly used to measure the mass of a body. State how is it used?
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उत्तर
Instrument commonly used to measure the mass of a body is the beam balance.
When we hold up the balance, we observe that when there is nothing on either pan, the beam is horizontal. The body whose mass is to be measured is placed on the left pan. The standard weight is put on the right pan. They are so adjusted that the beam is again horizontal on holding the balance up. The total of the standard weights gives the mass of the given body.
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संबंधित प्रश्न
Just as precise measurements are necessary in science, it is equally important to be able to make rough estimates of quantities using rudimentary ideas and common observations. Think of ways by which you can estimate the following (where an estimate is difficult to obtain, try to get an upper bound on the quantity):
Fill in the blank:
The ............ of an object is measured with the help of a beam balance.
Define one kilogram, the S.I. unit of mass.
1 kg of rice is weighed by ______.
State whether true or false. If false, correct the statement.
A physical balance is more sensitive than a beam balance.
Potatoes:: Kilogram; Water:: ______.
Mass is a ______ quantity.
What is the standard unit of mass?
Write a short note on the following:
Digital balance
What object and material were used to define the kilogram for 130 years before 2019?
