Write an activity to show that synthetic fibres are stronger than the cotton fibres.

• Take threads of cotton and nylon (synthetic fibres) of about same length and thickness.
• Hang cotton thread from a stand.
• Attach a pan at the other end of the thread.
• Add weights, one by one, to the pan until the thread breaks (see fig.) note the total weight required to break the cotton thread.
• This gives a measure of the tensile strength of the thread.
• Repeat the same with nylon thread.

Conclusion

Much more weight is required to break the nylon thread showing that nylon thread has greater strength than cotton thread.

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Updated on: 31-Jan-2023

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