Chapter Name : Friction |
Sub Topic Code : 101_08_12_05_01 |
Topic Name : Wheels Reduce Friction |
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Sub Topic Name : Wheels Reduce Friction |
What does friction depend upon and how rolling friction is lesser than sliding friction?
Force, Friction
Get a circular/cylindrical object of 1N from your physics lab, preferably a weight. Now try rolling it and then try pushing it when its lying on its bottom. Which is easier?
Its easier to roll a cylinder than to slide it. Why?
Key Words | Definitions (pref. in our own words) |
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Rolling Friction | The friction between the object being rolled and the surface. |
Sliding Friction | The friction between the object being slid and the durface |
Gadgets | How it can be used |
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Circular object (miniature wheel) | Feel the difference when you try to roll and when you try to slide the object (s) of same mass |
Vehicles have wheels as they reduce friction and thus require less energy to move. Thus require less fuel and more efficient
Children'd Museum
Examples | Explainations |
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Cars | Wheels reduce friction. All automoblies and even bicycles have wheels and not flat sliders because of lesser friction |
Wheels reduce friction, i.e. rolling friction is lesser than sliding and thus, very helpful.
Appreciation of the use of wheels in all automotive applications
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