मराठी

Difference in size Do this for yourself and find the difference.

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प्रश्न

Difference in size
Do this for yourself and find the difference.

रिकाम्या जागा भरा
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उत्तर

Different in size: 1.82 m – 1.52 m

= 0.30 m

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पाठ 10: Tenths and Hundredths - Tenths and Hundredths [पृष्ठ १४२]

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एनसीईआरटी Mathematics Math - Magic [English] Class 5
पाठ 10 Tenths and Hundredths
Tenths and Hundredths | Q A) | पृष्ठ १४२

संबंधित प्रश्‍न

The nearest star to our solar system is 4.29 light years away. How much is this distance in terms of parsecs? How much parallax would this star (named Alpha Centauri) show when viewed from two locations of the Earth six months apart in its orbit around the Sun?


Fill in the blank.

In the ............ system, length is measured in centimetres.


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.


Fill in the following chart.

Property Definition Basic Unit Instrument used for measuring
Length      
Mass      
Volume      
Time      

Find the answer for the following questions within the grid.

  1. 10-3 is one ______
  2. SI Unit of time is ______
  3. Cross view of reading a measurement leads to ______
  4. ______ is the one what a clock reads.
  5. ______ is the amount of substance present in an object.
  6. ______ can be taken to get the final reading of the recordings of different students for a single measurement.
  7. ______ is a fundamental quantity.
  8. ______ shows the distance covered by an automobile
  9. A tailor uses ______ to take measurements to stitch the cloth.
  10. Liquids are measured with this physical quantity.

Assertion (A): Distance between two celestial bodies is measured in terms of light year.

Reason (R): The distance travelled by the light in one year is one light year.


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        

Measure the yellow rectangle. It is ________ cm long.


You can play this game on the ground. Make two squares of one square meter each. Divide your class into two teams. Ready to play!

  • How many of you can sit in one square meter?

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.

  • How many cm is the length of the boundary of lake A in the drawing?(use thread to find out)

So Anar also tried many different ways to make a boundary for 800 square meters of land.

He made rectangles A, B, and C of different sizes. Find out the length of the boundary of each. How much gold wire will he get for these rectangles?


  • Gold wire for A = _________ metres

  • Gold wire for B = _________ metres
  • C  
    Gold wire for C = __________ metres

But then Anar made an even longer rectangle... See how long!


  • So he will get __________ metres of gold wire!!

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.

  • How many kilometers long is the actual boundary of lake A?

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.

  • Find the area of lake B on the drawing in square cm. What is its actual area in square km?

In which SI unit, you can measure your height?


What formula is used to measure the area of your classroom?


Match the following:

  Prefix   Symbol
a. Centi i. k
b. Nano ii. c
c. Mili iii. n
d. Kilo iv. m

Yard was used as the unit of length.


The radius of atom is of the order of 1 Å and the radius of nucleus is of the order of fermi. How many magnitudes higher is the volume of atom as compared to the volume of nucleus?


Why is the speed of light used to define the metre?


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