Explain Why Holes are Made in Hanging Banners and Hoardings
Holes are punched in dangling banners and hoardings to allow air to readily travel through and lower air pressure. Air not only possesses mass, but it also exerts pressure. The force exerted by air particles pushing in all directions is known as air pressure.
While air density can refer to the force exerted by air molecules within a limited space, atmospheric pressure refers to the force exerted by air particles above a given place in the Earth’s atmosphere.
Wind pressure can shred banners and hoardings off, loosen them, and cause them to fall if they don’t have openings.
The heaviness of air is exercised in every direction.
Banners and hoardings may rip or drop-down as a consequence of the weight.
Holes let the breeze pass through despite the fact stopping them from flattering, moveable and dropping down.