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प्रश्न
Fill in the following chart.
| Property | Definition | Basic Unit | Instrument used for measuring |
| Length | |||
| Mass | |||
| Volume | |||
| Time |
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उत्तर
| Property | Definition | Basic Unit | Instrument used for measuring |
| Length | The distance between one end and the other desired and. | Metre | Meter scale, Measuring tape. |
| Mass | Mass is the measure of the amount of matter in an object. | Kilogram | Beam balance |
| Volume | Volume is the space occupied by an object. | Solid -metre/Liquid - Litre | Measuring scale/Graduated cylinder |
| Time | It is a period between two events. | Second | Clock |
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संबंधित प्रश्न
Match the following.
| Column A | Column B |
| (1) Length | a. kilogram |
| (2) Mass | b. cubic metre |
| (3) Area | c. metre |
| (4) Volume | d. square metre |
Answer the following question.
Star A is farther than star B. Which star will have a large parallax angle?
Solve the numerical example.
When the planet Jupiter is at a distance of 824.7 million kilometers from the Earth, its angular diameter is measured to be 35.72'' of arc. Calculate the diameter of Jupiter.
Length of one’s chest can be measured using metre scale.
Rulers, measuring tapes and metre scales are used to measure ______
Now guess the length and width of many other things. Measure and find the difference between your measure and your guess.
| Size of | Your guess in cm | Your measure in cm | ||
| Length | Width | Length | Width | |
| 100 Rupee note | ||||
| 10 Rupee note | ||||
| 20 Rupee note | ||||
| 5 Rupee note | ||||
| Post card | ||||
| Math-Magic book | ||||
The fencing of a square garden is 20 m in length. How long is one side of the garden?
There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.
- What is the length of the boundary of lake B in the drawing?
In the parallax formula D = b/θ, what must be true about the angle θ for the calculation to be correct?
One parsec is defined as ______.
