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प्रश्न
Fill in the blank:
The S.I. unit of length is ............ of time is ............ of mass is ............
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उत्तर
The S.I. unit of length is metre of time is second of mass is kilogram.
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संबंधित प्रश्न
Describe in steps how would you measure the length of a pencil using a metre rule. Draw a diagram if necessary.
State if the following statement is true or false:
In ancient times, a cubit was used to measure the mass of an object.
How many centimetres are there in 1m?
Name the device used to measure the following:
Size of your wrist.
Name the device used to measure the following:
Your height.
State two precautions to be observed while measuring length with the help of a metre scale.
One metre is ______ cm.
SI unit of length is ______.
Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.
- Sam measured it with a half metre long thread.
- Gurmeet measured it with a 15 cm scale from her geometry box.
- Reena measured it using her hand span.
- Salim measured it using a 5 m long measuring tape.
Which one of them would get the most accurate length? Give reason for your answer.
While travelling in a train, it appears that the trees near the track are moving whereas co-passengers appear to be stationary. Explain the reason.
