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Explain Why Holes Are Made in Hanging Banners and Hoardings. - CBSE Class 7 - Science

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Question

Explain why holes are made in hanging banners and hoardings.

Solution 1

Air exerts pressure. Wind blowing in high speed may break or displace many things. If holes are made in hanging banners and hoardings, then air can pass through these holes, which reduces the air pressure exerted on the banners and hoardings. That is why holes are made in hanging banners and hoardings

Solution 2

Air exerts pressure. Due to this pressure banners and hoarding flutter and torn when wind is blowing fast. Holes are made in banners and hoardings so that wind passes through the holes and they do not become loose and fall down.

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APPEARS IN

 NCERT Solution for Science Textbook for Class 7 (2018 to Current)
Chapter 8: Wind Storms and Cyclones
Q: 5 | Page no. 92
Solution Explain Why Holes Are Made in Hanging Banners and Hoardings. Concept: Air Exerts Pressure.
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