Question

Hi, Is this the correct definition of Friction - Class 8?

Friction - Every surface has irregularities on them, when two surfaces come in contact with each other, these irregularities get interlocked within each other, this interlocking is called friction.

And if this is correct, then we know that friction is a force but how is this interlocking a force

Answer 1

Answer:

Super definition but include the heat caused by it.

Answer 2

Answer:

The definition you gave is partially correct.

Explanation:

As you have said that it is a force and why an interlock creates force. let's look into its answer!

so,

the interlocking is not the force it is only the cause for friction.

Imagine a zip, it is interlocked, the interlocking does not make a force, but if we try to make that lock move or say disturb it exerts a force against the applied force.

and that's the same case in friction, the friction is caused by an interlock, but it only exerts a force when we apply a force to it. That's why in some other definition it is referred to as the opposing force of motion.

So just to make the definition more clear, let's add,

These irregularities get interlocked making friction come into the picture.

Hope this helps you!

thanks

Gautham29:)

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