Bridge Design and Structural Forces

In this episode of Chumuk IQ, Nanjan introduces a simple science experiment to demonstrate the importance of bridges. The experiment involves using paper and coins to build a bridge, initially weak but strengthened by folding the paper into a fan shape. This folding creates triangles, which are resilient to compression and tension, key forces in bridge structures. The video concludes with a challenge for viewers to test the strength of their own paper bridges.

What is one of the key reasons humans have been able to travel extensively across the world?

• The development of bridges

• The creation of maps

• The invention of the wheel

• The use of airplanes

What materials are needed for the initial setup of the bridge experiment?

• A string, a weight, and a wooden plank

• A few coins, a couple of markers, and an A4 sheet of paper

• A ruler, a pencil, and a piece of cardboard

• A pair of scissors, glue, and a plastic sheet

How is the paper modified to increase the strength of the bridge?

• By cutting it into smaller pieces

• By folding it into a fan shape

• By coloring it with markers

• By soaking it in water

What shape is crucial for providing strength to the paper bridge?

• Square

• Triangle

• Circle

• Rectangle

What are the two forces that triangles in structures are resilient to?

• Compression and tension

• Gravity and friction

• Shear and torsion

• Bending and twisting

Why are triangles preferred in bridge design over squares?

• Triangles are easier to construct

• Triangles use less material

• Triangles are more aesthetically pleasing

• Triangles are more resilient to compression and tension

What is a common design for bridges that use triangles?

• Beam bridge

• Suspension bridge

• Arch bridge

• Truss bridge

Which famous bridge in Kolkata is an example of a truss bridge?

• Nivedita Setu

• Rabindra Setu

• Vidyasagar Setu

• Howrah Bridge

What is suggested to try after building the initial paper bridge?

• Adding more coins to the bridge

• Using a different type of paper

• Sandwiching the bridge between two sheets of paper

• Painting the bridge

What should viewers do after watching the episode?

• Share the video with friends

• Leave a comment with their results

• Subscribe to the channel

• Try the experiment with different materials