0
When friction is greater when surface have more is it gravity or roughness?
Wiki User
∙ 10y ago
Both. Suppose you want to move something over the ground. If it becomes heavier then it will be subject to more friction on account of gravity. If it's lower surface becomes rougher then again, it will be subject to more friction.
The force pressing two surfaces together and the roughness of the two surfaces act together to produce friction.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
How does the roughness of a surface effect friction?
The rougher then surface the greater the frictional force. When a surface is rough and you put friction to it, it creates sparks while smooth surfaces when friction is added causes a slight stactic shock.
How will different surfaces affect the speed of a roller skate on an incline plane?
It depends on its roughness of the surface. The roughness on the surfaces will tell you how much friction will be acting. It is believed that the friction is caused by the interaction of the particles at sub-atomic level. The greater the interaction between the particles, the greater the friction. The more rough the surface, the less area will interact with both surfaces. Different surfaces, will have different friction coefficients, which decide if the roller skate will slip or not slip.
Why standing friction is greater than sliding friction?
Starting, or static, friction is greater than sliding friction in general. Static friction requires force to be overcome as the object rests on a surface due to its roughness. The roughness is a bunch of small contact points under high stress that resists motion; once this resistance is overcome, the object moves and its velocity allows the surface to glide over the rough spots more easily . This sliding friction is thus a little lower than static friction
What are the variables for friction?
Surface area, surface roughness, material composition are all factors.
How does a surface affect friction?
Depending on the roughness or smoothness of the surface, it will increase friction if it is rough,(which has more microscopic hills and valleys). If the surface is made of a smooth material, it will decrease friction
What factors that affecting friction?
Friction actually depends on the roughness or smoothness of the surfaces of the object. Even some smooth objects that we usually see everyday (ex. glass, mirrorr,etc.) aren't that smooth when magnified by strong microscopes. They still have rough surfaces therefore they can also have friction. Factors that affect friction: 1.) Adhesion 2.) Surface roughness 3.)The area of an object which is in contact with the surface. The larger the surface in contact, the greater friction. 4.)The texture of the surface and/or the object. The rougher/more uneven the surface/object, the greater the friction. 5.) The weight on the surface. The larger the weight, the greater the friction 6.)The angle of the surface. The greater the angle of the surface, the greater the friction.
How does the roughness of a surface effect friction?
The rougher then surface the greater the frictional force. When a surface is rough and you put friction to it, it creates sparks while smooth surfaces when friction is added causes a slight stactic shock.
What is the relatonship between the roughness of a surface and the force of friction?
There is no simple relationship. However, the general tendency is that rougher surfaces have a greater coefficient of friction.
How does roughness of surface that are touching affect the friction between the surface?
the rougher the surface is, the more friction there will be
How does surface roughness affect friction?
answer it yourself ;)
How will different surfaces affect the speed of a roller skate on an incline plane?
It depends on its roughness of the surface. The roughness on the surfaces will tell you how much friction will be acting. It is believed that the friction is caused by the interaction of the particles at sub-atomic level. The greater the interaction between the particles, the greater the friction. The more rough the surface, the less area will interact with both surfaces. Different surfaces, will have different friction coefficients, which decide if the roller skate will slip or not slip.
Why standing friction is greater than sliding friction?
Starting, or static, friction is greater than sliding friction in general. Static friction requires force to be overcome as the object rests on a surface due to its roughness. The roughness is a bunch of small contact points under high stress that resists motion; once this resistance is overcome, the object moves and its velocity allows the surface to glide over the rough spots more easily . This sliding friction is thus a little lower than static friction
What are the variables for friction?
Surface area, surface roughness, material composition are all factors.
How does a surface affect friction?
Depending on the roughness or smoothness of the surface, it will increase friction if it is rough,(which has more microscopic hills and valleys). If the surface is made of a smooth material, it will decrease friction
What are the main causes of friction?
the main causes of friction are molecular adhesion,surface roughness,and the plowing effect.
What are the two main factors on which friction depends?
roughness of surface explain.... please..
What factors affect the coefficient of friction between two surfaces?
Surface temperature, Weight of the object, Roughness of surface and the object
