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प्रश्न
Write true or false.
Mass is the measure of quantity of matter.
विकल्प
True
False
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उत्तर
True
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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):
Match the following column:
| Column A | Column B |
| (a) Length of a housing plot | (1) Clock |
| (b) Breadth of a book | (2) Beam balance |
| (c) Mass of an apple | (3) Thermometer |
| (d) Period of time for study | (4) Measuring tape |
| (e) Temperature of a body | (5) Graph paper |
| (f) Surface area of a leaf | (6) Metre ruler |
Name and define the S.I. unit of time. How is it related to (i) minute (ii) hour, (iii) day, and (iv) year?
Find the odd one out.
Kerosene is measured with the help of the graduated cylinder.
Potatoes:: Kilogram; Water:: ______.
Where are the electronic balances used?
The unit is used to measure mass ______.
Write a short note on the following:
Common (beam) balance:
Since 2019, the kilogram has been redefined based on which fundamental physical constant?
