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प्रश्न
Define mass.
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उत्तर
Mass is the measure of the amount of matter in an object. It is a fundamental property of matter and does not change with location or the object’s state.
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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):
Tick the most appropriate answer.
The SI unit of mass is
Name the device commonly used to measure mass.
Find the odd one out.
1 metric ton is equal to ______.
Which among the following is not a device to measure mass?
What is the standard unit of mass?
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)
Why is carbon-12 chosen as the standard for defining the amu?
Why was the kilogram redefined in 2019, and how is it measured now?
