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In general, friction acts to prevent objects in contact with each other from moving with respect to each other. Friction keeps your furniture where you place it. The friction between your feet [or shoes] and the ground enables you to walk. When you apply the brakes in a car, friction causes the wheels to stop rotating . Friction holds a screw or nail into a board and a nut onto a bolt. Friction between your fingers and an object allows you to pick it up. Friction is proportional to surface roughness. A measurement of the force needed to overcome friction can be used as an indicator of a surface's roughness/smoothness.

When friction is used to reduce relative motion (or to get objects moving), a portion of energy needed to do so is dissipated in the form of heat. This is why a car's brakes get hot and why a nail pulled out of a board can feel warm. Usually, this heat is just a waste byproduct, but it can be useful. The friction of rubbing your hands together will warm them, and the heat of driving a nail into a board can be used to temporarily melt the adhesive on 'cement coated' nails.

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How does Friction Help Us?

Friction helps us by letting us grasp things so they won't fall. Without friction you can expect to have more car accidents, and a lot of random people falling because friction helps us walk. Also airplanes in a way use friction to fly. no slaking in class


What does all types of frictions do?

Friction act on us every day. Types of Friction: 1) Sliding friction 2) Rolling friction 3) Static friction 4) Fluid friction


How do forces like friction help us?

Forces like friction help us by providing traction to prevent slipping or sliding. Friction also helps in controlling the speed of vehicles and stopping them when needed. In everyday activities, friction enables us to grip objects, walk, and even write.


How does friction help us when writing?

Friction helps with writing by creating enough resistance between the pen and paper to allow for control and precision in letter formation. It also prevents the pen from slipping or sliding too easily, which can contribute to neater handwriting.


What is desirable effect of friction?

The desirable effect of friction is that it allows us to walk, drive, and grip objects without slipping. This type of friction also helps us stop moving objects and control their speed.


Is it true you could not walk without friction?

Friction is actually what allows us to walk. When we take a step, the friction between our feet and the ground provides the necessary force to propel us forward. Without friction, we wouldn't be able to generate the traction needed to walk.


Does friction effect vehicles?

Absolutely. Without friction, you would have no traction with your tires. Nothing to get you moving. Nothing to stop you, and nothing to allow you to turn corners. And your brakes wouldn't be very effective without friction. Friction, however, does also have its costs. It takes energy to overcome friction in the engine and drivetrain. Bearings have friction. Pistons and piston rings have friction in the cylinders. Air friction also opposes the movement of the vehicles.


What force prevents people from sliding when they walk?

The force of friction between the ground and the bottom of their shoes prevents people from sliding when they walk. Friction provides the necessary traction to maintain stability and prevent slipping.


What kind of friction occurs when moving parts have the ball bearings?

Rolling friction occurs when moving parts have ball bearings. This type of friction is lower than sliding friction, as the ball bearings allow the parts to roll smoothly over each other with less resistance.


How is force of friction useful to us?

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