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1.1

Minor Versionm

by Procheta Mallik

Introduction

We see metals in all kinds of shapes in our daily life: rods, sheets, wires, plates etc. Here, we conduct a simple experiment to see if metal wires and other materials can be made flat, i.e. testing them for their malleability

    • Be extremely careful while using the hammer/pliers.

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  1. Take a piece of copper wire (25 gauge or thicker, about 15cm long).
    • Take a piece of copper wire (25 gauge or thicker, about 15cm long).

    • Hammer it to try and make it flat.

    • Be extremely careful while hammering. Do not injure your hand/fingers.

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    • Take a piece of thick binding wire (about 15cm long).

    • Hammer this too and try and make it as flat as you can!

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    • Now do the same with a piece of chalk

      • Does it become flat?

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    • Repeat the same exercise for a piece of lead from a pencil

      • What do you observe in this case?

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    • Not hammering hard enough

    • The wire is too short to be hammered.

    • Hammering the wire for too long could break the wire.

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    • Can you categorise the four items as "malleable" and "non-malleable"?

    • Record the number of times you hammered each of the items.

    • Repeat for different materials: metals and non-metals and record your observations.

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Finish Line

Vishal Bhatt

Member since: 04/26/2017

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