Friction can be very helpful. It prevents things from slipping away from your hand easily. Stopping a car from crashing (breaks). Slows you down when necessary
Makes us able to stand up. Helps us sand things when doing wood projects (with sandpaper). Makes us able to carry things. You can also warm your body by friction by rubbing your hands together or on certain body parts to warm yourself up.
Brake pads and brake shoes used on cars, motorcycles, trucks, trains, aircraft and many other types of machinery. Sandpapers and polishes. A Van de Graaff Generator uses friction to produce high voltage static electricity.
Brake pads and brake shoes used on cars, motorcycles, trucks, trains, aircraft and many other types of machinery. Sandpapers and polishes. A Van de Graaff Generator uses friction to produce high voltage static electricity.
rubbing 2 sticks to make fire!
sprinkling sand on an icy road
wearing batting glovessprinkling sand on an icy roadapplying the brakes on a car
writing on paper with a pen.
hi there! not sure what you mean by "useful friction" but I'm guessing that you're asking "what examples are there where friction is useful" A simple example is that of sandpaper. Where you need to smoothen something and using a smooth (ie frictionless sandpaper) would be useless. A more day to day example would include the friction between your shoes and the ground without which you would be unable to walk with (like skating on ice). In fact, friction is required for you to grab anything (even a book which would slip off your fingers without friction). As for an explicit use of friction there's "Friction Welding" where mechanical friction is used to weld metal together. An article may be found on our friend Wikipedia. http://en.wikipedia.org/wiki/Friction_welding How this helps anybody reading! Cheers!
There are many examples. Friction for example prevents our shoes slipping on the pavement when we walk. It is used in vehicle's brakes. Materials like rubber are used i many ways for increasing friction - in tires, different handles for easier grip, bike brakes and so on. Friction i s also used in machines for grinding cutting and polishing.
Friction between your shoes and the ground stops you slipping and/or falling over.
Breaks on a car and the friction between the tyres and the road.
Brakes.
Racing because friction slows you down but you need to go fast.
Rubber bath mats are useful with friction because they have a lot of friction and can stop you from slipping because of all the friction it produces. - thank you to this website for the answers :)
yes friction is very useful because it help objects not to slide or slip
stopping cars Friction is useful to start a fire with sticks.
Friction is important for all sports.Without it it becomes really hard to accelerate or deaccelerate.For example a 100m sprinter.It would be great for him if there wasnt any air resistance (as long as he can breath).But he needs friction on the floor to push himself forward.however friction is less useful in hockey, skiing, and almost all types of boarding(snowboarding, wakeboarding, kneeboarding, sandboarding).
Friction is very useful but it has its own disadvantages. Friction causes wear and tear. Friction spoils the soles of our shoes. friction reduces speed This is all wrong some not useful types of friction are are when airplanes fly the friction causes heat that materials that will withstand which are costly.
there is friction in your cars brake system and without that frictiuon there your car would roll away whenever it was on a hill so this is a good example of when friction is useful.
Racing because friction slows you down but you need to go fast.
Racing because friction slows you down but you need to go fast.
Rubber bath mats are useful with friction because they have a lot of friction and can stop you from slipping because of all the friction it produces. - thank you to this website for the answers :)
Brakes are meant to have a lot of friction and it's useful.
yes friction is very useful because it help objects not to slide or slip
stopping cars Friction is useful to start a fire with sticks.
Most forms of conventional movement require friction. For example, a car could not go anywhere if not for the the friction between the rubber tire and the road surface.
No Friction Runes Computers
Friction is important for all sports.Without it it becomes really hard to accelerate or deaccelerate.For example a 100m sprinter.It would be great for him if there wasnt any air resistance (as long as he can breath).But he needs friction on the floor to push himself forward.however friction is less useful in hockey, skiing, and almost all types of boarding(snowboarding, wakeboarding, kneeboarding, sandboarding).
the friction from pushing the hull through the water is not useful as long as you're travelling.