Advertisements
Advertisements
प्रश्न
What is the length of a 100 rupee note? Guess. Now measure it using a scale.
Advertisements
उत्तर
I guess that the 100 rupee note is 16 cm long. On measuring we find that the length of 100 rupee note is 15.6 cm.
APPEARS IN
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?
When the planet Jupiter is at a distance of 824.7 million kilometres from the Earth, its angular diameter is measured to be 35.72″ of arc. Calculate the diameter of Jupiter
500 gm = ______ kilogram.
A hand span is a reliable measure of length.
Complete the analogy.
Height of a person: cm :: Length of your sharpened pencil lead:______?
Match the following.
| 1. | Length of the fore arm | metre |
| 2. | SI unit of length | second |
| 3. | Nano | 103 |
| 4. | SI Unit of time | 10–9 |
| 5. | Kilo | Cubit |
Rulers, measuring tapes and metre scales are used to measure ______
Guess whose tail is the longest. Now measure the tails. How good is your guess?
Difference in size 
Do this for yourself and find the difference.
How many stamps are needed to cover the rectangle?
Now cut strips of equal sizes out of it. Using tape join the strips, end to end, to make a belt.
How long is your belt? _________
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.
- Find the area of lake B on the drawing in square cm. What is its actual area in square km?
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.
- A longer boundary around the lake will help more birds to lay their eggs. So which lake should be kept for birds? Which lake should be used for boats?
Give some examples of larger length measures.
The distance between one end and the other end is called ______.
To measure the distance of a planet from the earth, ______ method is used.
What is an Astronomical Unit (AU)?
Why is the speed of light used to define the metre?
