NCERT · Class 4 · EVS

Chapter 1: Going to School

Practice each question, then open the answer or worked solution.

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2 questions

Q1Written answer

Observe pictures 1 and 2. In the pictures, children are pulling the buckets from the well. Can you tell the difference in both the pictures? Which would be easier – using the pulley or not using it to lift things?

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Worked solution

In picture 1, a boy is trying to pull the bucket from the well without using a pulley. Whereas, in picture 2, a boy is pulling the bucket full of water using a pulley. Definitely, using a pulley to lift things is easier.

Q2Written answer

Look around you – where all do you see the use of pulleys? List them.

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Worked solution

I have seen the using of pulleys at construction sites, to hoist flags, to fetch water from wells and usually for lifting heavy objects easily.

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Chapter 1: Going to School

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