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Q: Why does a sharper blade take less force to cut?
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Why does a sharp knife cut better than a dull knife?

Bacause the Sharp Knife has greater pressure than a dull knife.it cuts better because it is sharper. the force exerted on it is greater than it would be if it was blunt.The area on the tip of the blade is small meaning the pressure exerted is all at the end of the tip making it easier to use. (the force on both knives is the same)!AnswerWhen we cut any vegetable or fruit with a sharp knife suface area will be less so force applied is more and pressure will also be more (force is directly proportional to pressure). Thus,vegetables or fruits are cutted more perfectly.AnswerIt depends a bit on what is being cut and why.Imagine trying to cut a tomato with something really blunt, like a ruler.It wouldn't cut, but rather crush its way through, leaving a considerable mess.The sharper the blade, the less crushing there is, and you get nicer, more useful parts from the cut.If you're trying to cut something that's stronger/harder than fruits and vegetables, then a blunt blade would need to be pushed a lot harder against the surface before it starts to cut. If you want to do a bit of wood carving, you might simply not be able to push hard enough to get any "bite" if the blade isn't sharp enough.Sharp knives cut better than dull knifes because sharp knifes have a thinner blade, leaving less area to cut.Sharp knives cut neatly, without crushing cells of the food. The sharper knives also prevent cutting fingers as pressure is evenly applied and no slippage happens,Pressure is force per unit area, sharpness implies lesser area (that makes the contact). Hence, in case of sharper blades we end up with greater pressure which helps us cut an object more effectively. You can relate high pressure to concentrated force. So, in case of sharper blades, this concentrated force weakens the surface more effectively and hence easily cuts through.because the blade is thinner and its easier to cut with a thinner blade than a wider blade, it all comes down to atoms and how many atoms wide the knife it, the fewer atoms wide the knife is, the easier it will be to slice through something with it.It's easier because a sharp knife will cut through more quickly and accurately, than a blunt knife will take longer and it won't cut very well.Because there is less surface area in contact and the force applied is being concentrated on the less area.The same reason that it's easier to cut an apple with a sharp knife that with a blunt knife because sharp knife is very sharp and it is easy to cut but with blunt knife it is very hardIt is said that a sharp knife is better, and safer, than a dull one because with a dull knife, you have to work very hard to cut and that usually means sawing away at whatever you are cutting. A dull knife is more likely to slip and cut you because it is not easy to cut with. A sharp knife will do the job in one swipe and not much movement.A sharp knife has a smaller edge than a blunt knife. When dealing with fracture or tearing, a smaller edge means cutting a smaller area. On a molecular scale this means breaking fewer bonds, and less energy to separate the object into pieces.The sharp edge is the thin edge. The thinness is important because it needs to be thin to get between the molecules to 'cut'. The blunt edge is too thick to do this.Because the knife is sharp.Why is this question categorized in baboons?If you apply 10 lbs of pressure on a blunt knife, the pressure's spread over the area of the knife which is in contact with the meat, where as the sharp knife has a much smaller area, making the same pressure localised, allowing cutting to be done much easier.Maybe because its sharpcuz.A sharp knife has a smaller area on the edge of the blade, so you get a higher pressure with an equal amount of force. This means you can puncture the skin of a fruit with less force if you use a sharp knife.


Why is it important to reduce friction in a joint?

to prolong live and it will take less force to get it moving


Why is it important to reduce friction in joints?

to prolong live and it will take less force to get it moving


Which would take less force to move a heavy object or a light weight object?

When you include the effects of friction, it takes less force to move a light-weight object. If you can get the objects into a frictionless environment, then any force, no matter how small, can move any object, no matter how heavy.


What machines can change the direction of a force?

Well, its not that hard: Some machines help people do work by changing the size of the force needed. Have you ever tried opening a door by turning the shaft instead of the handle? Not as simple. It takes less force to use the handle instead of the shaft. If a machine (doorknob attached to shaft) allows you to exert less force, you must apply that force over a greater distance. the complete and total amount of work done remains the same, whether its by machine or not. Because a machine does not change the amount of work to be done, less force must mean greater distance. So: Machine=less force BUT greater distance!

Related questions

Why the tools meant fo r cutting and piercing always have sharp edges?

The sharper the edges, the easier is the cutting and piercing, and will take less effort. Blunt tools take more effort and are liable to slip, causing an accident.


Does your weight change if you take a spaceship into space?

Yes, the force of gravity is less in space, so your weight is less too.


Why does a sharp knife cut better than a dull knife?

Bacause the Sharp Knife has greater pressure than a dull knife.it cuts better because it is sharper. the force exerted on it is greater than it would be if it was blunt.The area on the tip of the blade is small meaning the pressure exerted is all at the end of the tip making it easier to use. (the force on both knives is the same)!AnswerWhen we cut any vegetable or fruit with a sharp knife suface area will be less so force applied is more and pressure will also be more (force is directly proportional to pressure). Thus,vegetables or fruits are cutted more perfectly.AnswerIt depends a bit on what is being cut and why.Imagine trying to cut a tomato with something really blunt, like a ruler.It wouldn't cut, but rather crush its way through, leaving a considerable mess.The sharper the blade, the less crushing there is, and you get nicer, more useful parts from the cut.If you're trying to cut something that's stronger/harder than fruits and vegetables, then a blunt blade would need to be pushed a lot harder against the surface before it starts to cut. If you want to do a bit of wood carving, you might simply not be able to push hard enough to get any "bite" if the blade isn't sharp enough.Sharp knives cut better than dull knifes because sharp knifes have a thinner blade, leaving less area to cut.Sharp knives cut neatly, without crushing cells of the food. The sharper knives also prevent cutting fingers as pressure is evenly applied and no slippage happens,Pressure is force per unit area, sharpness implies lesser area (that makes the contact). Hence, in case of sharper blades we end up with greater pressure which helps us cut an object more effectively. You can relate high pressure to concentrated force. So, in case of sharper blades, this concentrated force weakens the surface more effectively and hence easily cuts through.because the blade is thinner and its easier to cut with a thinner blade than a wider blade, it all comes down to atoms and how many atoms wide the knife it, the fewer atoms wide the knife is, the easier it will be to slice through something with it.It's easier because a sharp knife will cut through more quickly and accurately, than a blunt knife will take longer and it won't cut very well.Because there is less surface area in contact and the force applied is being concentrated on the less area.The same reason that it's easier to cut an apple with a sharp knife that with a blunt knife because sharp knife is very sharp and it is easy to cut but with blunt knife it is very hardIt is said that a sharp knife is better, and safer, than a dull one because with a dull knife, you have to work very hard to cut and that usually means sawing away at whatever you are cutting. A dull knife is more likely to slip and cut you because it is not easy to cut with. A sharp knife will do the job in one swipe and not much movement.A sharp knife has a smaller edge than a blunt knife. When dealing with fracture or tearing, a smaller edge means cutting a smaller area. On a molecular scale this means breaking fewer bonds, and less energy to separate the object into pieces.The sharp edge is the thin edge. The thinness is important because it needs to be thin to get between the molecules to 'cut'. The blunt edge is too thick to do this.Because the knife is sharp.Why is this question categorized in baboons?If you apply 10 lbs of pressure on a blunt knife, the pressure's spread over the area of the knife which is in contact with the meat, where as the sharp knife has a much smaller area, making the same pressure localised, allowing cutting to be done much easier.Maybe because its sharpcuz.A sharp knife has a smaller area on the edge of the blade, so you get a higher pressure with an equal amount of force. This means you can puncture the skin of a fruit with less force if you use a sharp knife.


Why is it important to reduce friction in a joint?

to prolong live and it will take less force to get it moving


Why is it important to reduce friction in joints?

to prolong live and it will take less force to get it moving


It take more force to stop a train than a car?

It takes less force to stop a train than to stop a car.


Why is sharp knife more affected than a dull knife?

Bacause the Sharp Knife has greater pressure than a dull knife.it cuts better because it is sharper. the force exerted on it is greater than it would be if it was blunt.The area on the tip of the blade is small meaning the pressure exerted is all at the end of the tip making it easier to use. (the force on both knives is the same)!AnswerWhen we cut any vegetable or fruit with a sharp knife suface area will be less so force applied is more and pressure will also be more (force is directly proportional to pressure). Thus,vegetables or fruits are cutted more perfectly.AnswerIt depends a bit on what is being cut and why.Imagine trying to cut a tomato with something really blunt, like a ruler.It wouldn't cut, but rather crush its way through, leaving a considerable mess.The sharper the blade, the less crushing there is, and you get nicer, more useful parts from the cut.If you're trying to cut something that's stronger/harder than fruits and vegetables, then a blunt blade would need to be pushed a lot harder against the surface before it starts to cut. If you want to do a bit of wood carving, you might simply not be able to push hard enough to get any "bite" if the blade isn't sharp enough.Sharp knives cut better than dull knifes because sharp knifes have a thinner blade, leaving less area to cut.Sharp knives cut neatly, without crushing cells of the food. The sharper knives also prevent cutting fingers as pressure is evenly applied and no slippage happens,Pressure is force per unit area, sharpness implies lesser area (that makes the contact). Hence, in case of sharper blades we end up with greater pressure which helps us cut an object more effectively. You can relate high pressure to concentrated force. So, in case of sharper blades, this concentrated force weakens the surface more effectively and hence easily cuts through.because the blade is thinner and its easier to cut with a thinner blade than a wider blade, it all comes down to atoms and how many atoms wide the knife it, the fewer atoms wide the knife is, the easier it will be to slice through something with it.It's easier because a sharp knife will cut through more quickly and accurately, than a blunt knife will take longer and it won't cut very well.Because there is less surface area in contact and the force applied is being concentrated on the less area.The same reason that it's easier to cut an apple with a sharp knife that with a blunt knife because sharp knife is very sharp and it is easy to cut but with blunt knife it is very hardIt is said that a sharp knife is better, and safer, than a dull one because with a dull knife, you have to work very hard to cut and that usually means sawing away at whatever you are cutting. A dull knife is more likely to slip and cut you because it is not easy to cut with. A sharp knife will do the job in one swipe and not much movement.A sharp knife has a smaller edge than a blunt knife. When dealing with fracture or tearing, a smaller edge means cutting a smaller area. On a molecular scale this means breaking fewer bonds, and less energy to separate the object into pieces.The sharp edge is the thin edge. The thinness is important because it needs to be thin to get between the molecules to 'cut'. The blunt edge is too thick to do this.Because the knife is sharp.Why is this question categorized in baboons?If you apply 10 lbs of pressure on a blunt knife, the pressure's spread over the area of the knife which is in contact with the meat, where as the sharp knife has a much smaller area, making the same pressure localised, allowing cutting to be done much easier.Maybe because its sharpcuz.A sharp knife has a smaller area on the edge of the blade, so you get a higher pressure with an equal amount of force. This means you can puncture the skin of a fruit with less force if you use a sharp knife.


How can one take sharper images with a camera?

There are a few techniques one can try to take sharper images with a camera. One can use a stand or tripod to avoid shaking the camera. Use continuous shooting mode and higher ISO speeds.


What replacement blade does it take for a task force NW1005 band saw?

My 90181 saw takes a 56 1/8 in blade available @ any Lowes store,part no. in user manual is MB6A-016 which you should not need,just buy 56 1/8 blade.


Is there a mailing list for the Sharper Image catalog?

There is indeed a mailing list for the Sharper Image catalog. Do take note though that they trim the list yearly by dropping customers that have not purchased for some time.


Is it good to have low or high ISO in a digital camera?

Lower settings give sharper images. Higher settings require less light. Up to ISO: 400 is good because it allow you to take pictures at night, or in darker settings. Higher ISO numbers allow you to take pictures in less light, but increases the risk of more and more "digital noise".


Which would take less force to move a heavy object or a light weight object?

When you include the effects of friction, it takes less force to move a light-weight object. If you can get the objects into a frictionless environment, then any force, no matter how small, can move any object, no matter how heavy.