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प्रश्न
Look around you – where all do you see the use of pulleys? List them.
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उत्तर
Pulleys are used
- to fetch water from wells
- in moving trolleys
- in elevators
- in flagpoles to hoist flags
- to lift heavy loads in construction sites
- in moving curtains in theatres
- in cranes and bulldozers
APPEARS IN
संबंधित प्रश्न
With the help of a pulley, try and lift various things, as shown in the picture.
You have seen how children use a different kind of bridges, to cross rivers and other uneven areas to reach school.
Do you have to cross any bridge on the way to your school? If yes, what is the bridge like? Draw its picture.
Is there any bridge near your house? Find out more about the bridge.
- Where is the bridge – over water, over a road, between two mountains or somewhere else?
- Who all use the bridge? Is it used by people on foot and also by vehicles and animals?
- Does the bridge seem to be old or is it new?
- Find out what materials are used in making this bridge. List some of them.
Imagine what difficulties there would be if the bridge was not there? Let us find out some other ways by which children get to school.
How did you feel riding in the cart? Also, share your experience in the class also.
Does bullock-carts have a roof?
Would you like to ride in something like this? Why?
Do you think that such places have snow all the time? Why?
Go to a ground or an open space with your friends. Act the way you will walk in these situations.
- The ground is made of soft and smooth rose petals.
- The ground is covered with thorns and there is tall grass on the sides.
- The ground is covered with snow.
Was there a difference in the way you walked each time? Discuss.
