Write appliances of friction
Answers
Answer:
Transportation
Automobile brakes inherently rely on friction, slowing a vehicle by converting its kinetic energy into heat. Incidentally, dispersing this large amount of heat safely is one technical challenge in designing brake systems. Disk brakes rely on friction between a disc and brake pads that are squeezed transversely against the rotating disc. In drum brakes, brake shoes or pads are pressed outwards against a rotating cylinder (brake drum) to create friction. Since braking discs can be more efficiently cooled than drums, disc brakes have better stopping performance.[71]
Rail adhesion refers to the grip wheels of a train have on the rails, see Frictional contact mechanics.
Road slipperiness is an important design and safety factor for automobiles[72]
Split friction is a particularly dangerous condition arising due to varying friction on either side of a car.
Road texture affects the interaction of tires and the driving surface.
Measurement
A tribometer is an instrument that measures friction on a surface.
A profilograph is a device used to measure pavement surface roughness.
Household usage
Friction is used to heat and ignite matchsticks (friction between the head of a matchstick and the rubbing surface of the match box).[73]
Sticky pads are used to prevent object from slipping off smooth surfaces by effectively increasing the friction coefficient between the surface and the object.xplanation:
The rubbing of one object or surface or thing against another