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Chapter 7 of 10
Flashcards

How Things Work

CBSE · Class 4 · EVS

Flashcards for How Things Work — CBSE Class 4 EVS. Quick Q&A cards covering key concepts, definitions, and formulas.

44 questions64 flashcards5 concepts

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64 Flashcards
Card 1Spinning objects

What kinds of things can spin?

Answer

Some objects like coins and bangles can spin. An eraser does not spin properly. Spinning is seen in many things around us, such as ceiling fans and potter's wheels.

Card 2घूर्णन वस्तुएँ

किन-किन चीज़ों को घुमाया जा सकता है?

Answer

कुछ वस्तुएं जैसे सिक्का, चूड़ी आदि घूम सकती हैं। रबर ठीक से नहीं घूमता। घूमना हमारे आस-पास की कई चीजों में देखा जाता है जैसे सीलिंग फैन, कुम्हार का चाक आदि।

Card 3घूर्णन वस्तुएँ

एक सिक्का एक रबर से बेहतर क्यों घूमता है?

Answer

एक सिक्का ठीक से घूम सकता है, लेकिन एक इरेज़र ठीक से नहीं घूमता है। कुछ वस्तुएँ इस तरह से आकार और संतुलित होती हैं कि वे अच्छी तरह से घूम सकें।

Card 4Spinning objects

Why does a coin spin better than an eraser?

Answer

A coin can spin properly, but an eraser does not spin properly. Some objects are shaped and balanced in a way that helps them spin well.

Card 5Spinners

What happens when a spinner with a hole at the centre is spun?

Answer

It appears the same from all sides and remains upright while spinning. The position of the hole at the centre helps it spin properly.

Card 6स्पिनर्स

जब एक छेद वाले स्पिनर को घुमाया जाता है तो क्या होता है?

Answer

यह चारों तरफ से एक जैसा दिखता है और घूमते समय सीधा रहता है। केंद्र में छेद की स्थिति इसे ठीक से घूमने में मदद करती है।

Card 7स्पिनर्स

जब स्पिनर में छेद केंद्र से दूर होता है तो क्या होता है?

Answer

स्पिनर उसी तरह से व्यवहार नहीं करता है जैसे कि केंद्र में छेद वाला। यह ठीक से स्पिन नहीं कर सकता है क्योंकि संतुलन समान नहीं है।

Card 8Spinners

What happens when the hole in a spinner is away from the centre?

Answer

The spinner does not behave the same way as the one with the hole at the centre. It may not spin properly because the balance is not the same.

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Frequently Asked Questions

What are the important topics in How Things Work for CBSE Class 4 EVS?
How Things Work covers several key topics that are frequently asked in CBSE Class 4 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in How Things Work — CBSE Class 4 EVS?
Understand the core concepts first, then work through the 44 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for How Things Work?
There are 64 flashcards for How Things Work covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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