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प्रश्न
Write true or false.
Mass is the measure of quantity of matter.
पर्याय
True
False
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उत्तर
True
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संबंधित प्रश्न
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 |
Define mass.
Name the device commonly used to measure mass.
Find the odd one out.
State whether true or false. If false, correct the statement.
A physical balance is more sensitive than a beam balance.
Assertion(A): The scientifically correct expression is “ The mass of the bag is 10 kg”
Reason (R): In everyday life, we use the term weight instead of mass.
Numerical Problem.
Find the mass of an object weighing 98 N
Where are the electronic balances used?
If Planck’s constant (h) and speed of light in vacuum (c) are taken as two fundamental quantities, which one of the following can, in addition, be taken to express length, mass and time in terms of the three chosen fundamental quantities?
- Mass of electron (me)
- Universal gravitational constant (G)
- Charge of electron (e)
- Mass of proton (mp)
Name the device used for measuring the mass of atoms and molecules.
