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When would you want less friction?
There are many applications that would benefit from less friction. Any kind of motion where heat is produced but not intended would benefit from less friction. Some examples: 1. the contact point between the piston and wall in an engine produces less heat and more power with less friction 2. air flow over a car's exterior, over a plane's exterior, over a rockets exterior results in reduced drag (air resistance) with less friction 3. the space shuttle could definitely use less friction with the atmosphere during re-rentry 4. electrical conductors are more efficient as friction decreases 5. if friction were 0, the perpetual motion machine would be possible
Why wouldn't you want to reduce the friction involved in using a winding road?
Because if there is less friction, the road would be very slippery, therefore more dangerous
Examples of when you want less friction?
If you were roller-skating you don't need friction because it slows you down. Well you want friction between the wheels and the floor (so you do not slip sideways) but not between the wheel and the axel (thats why you have ball bearings there to reduce rolling friction). If you are ice skating you do not want friction between the blade of your skates and the ice.
Do you want to reduce friction when you are sitting on a park bench?
Normally you would not want to do so. If there was no friction, you would slip right off the bench onto the ground. You need some friction in order to stay in one place.
What shape has the most friction and why?
You would want to maximize area of contact, and for air friction you would want to maximise the area facing the wind, or direction of motion, Either way the most friction is had from a sheet, provided it can be kept in the right orientation.
Do you want more or less fluid friction while swimming?
You want less friction. Then you will go faster.
When would you want less friction?
There are many applications that would benefit from less friction. Any kind of motion where heat is produced but not intended would benefit from less friction. Some examples: 1. the contact point between the piston and wall in an engine produces less heat and more power with less friction 2. air flow over a car's exterior, over a plane's exterior, over a rockets exterior results in reduced drag (air resistance) with less friction 3. the space shuttle could definitely use less friction with the atmosphere during re-rentry 4. electrical conductors are more efficient as friction decreases 5. if friction were 0, the perpetual motion machine would be possible
Why wouldn't you want to reduce the friction involved in using winding road?
Because if there is less friction, the road would be very slippery, therefore more dangerous
Why wouldn't you want to reduce the friction involved in using a winding road?
Because if there is less friction, the road would be very slippery, therefore more dangerous
Would it be better to increase or decrease friction in swimming?
If you want to swim faster, then decreasing friction would help you with that - Less friction means you glide easer through the water. If you want a more efficient workout then increasing friction would help you with that. If you were to put a track suit on before entering the water you'd have to work a lot harder for each lap in the pool.
Examples of when you want less friction?
If you were roller-skating you don't need friction because it slows you down. Well you want friction between the wheels and the floor (so you do not slip sideways) but not between the wheel and the axel (thats why you have ball bearings there to reduce rolling friction). If you are ice skating you do not want friction between the blade of your skates and the ice.
Do you want to reduce friction when you are sitting on a park bench?
Normally you would not want to do so. If there was no friction, you would slip right off the bench onto the ground. You need some friction in order to stay in one place.
Does friction move in the same direction as or in opposite direction as the object?
The force of friction ALWAYS acts in the direction exactly opposite to the directionin which the object is moving.If the friction force acted in the same direction as the object's motion, then youwould want to have as much friction as possible, because that would help youmove the object with less fuel.
When would you want friction to work for you?
Braking. Driving on ice.
What shape has the most friction and why?
You would want to maximize area of contact, and for air friction you would want to maximise the area facing the wind, or direction of motion, Either way the most friction is had from a sheet, provided it can be kept in the right orientation.
What are the activity that requires you to decrease friction?
In several cases, friction can be a real nuisance, mainly because it wastes energy. Thus, in many engines, where there are moving parts, you'll want to decrease friction to waste less energy.
When might you want to increase friction between two object?
Turning wheels against surfaces would require some amount of friction.
