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Q.Explain Advantages and disadvantages of friction.
Andhra Pradesh BieapBIEAP Intermediate Board (1st Year) 2023Subjective· 4mImportance★★★★★
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Start your 14-day free trial to unlock the full solution →Friction is essential for many everyday actions but also causes energy loss and wear in machines.
Advantages of friction:
- Walking is possible only because of friction between our feet and the ground; on a frictionless (slippery) surface we cannot walk.
- Vehicles can move, stop, and turn because of friction between tyres and the road; brakes work due to friction.
- Nails, screws, nuts and bolts stay fixed in place due to friction.
- We can hold and grip objects (like a pen while writing, or a rope while climbing) because of friction between our fingers/palms and the object.
- A ladder placed against a wall stays in place due to friction at its base and against the wall.
Disadvantages of friction:
- Friction causes wear and tear of machine parts (like tyres, shoe soles, engine parts, gears) that are in relative motion.
- It generates unwanted heat, wasting energy that could otherwise do useful work. …
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