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Why the friction between two surfaces increases when they are pressed harder?
Since the frictional force is directly proportional to the normal reaction When two surfaces are pressed harder normal reaction increases .'. Friction increases
Explain why the frictional force between two surfaces increases?
There are basically two ways to increase friction between two surfaces, which are, make them rougher (increased co-efficient of friction) or press them together with greater pressure. In either case, you are increasing the interaction between irregularities on the surfaces. Completely smooth surfaces would, in theory, be frictionless.
Friction between two flats surfaces can be divided into two categories what are the two most common kinds of friction?
The friction felt between two flat surfaces can either be sliding friction or static friction.
What is the interaction between two surfaces?
friction!
Why rolling friction is less than sliding friction?
Rolling friction is the force of friction between two surfaces when one surface rolls over another.Sliding friction is the force of friction between two surfaces when one surface is moving on another.
Why the friction between two surfaces increases when they are pressed harder?
Since the frictional force is directly proportional to the normal reaction When two surfaces are pressed harder normal reaction increases .'. Friction increases
A lower coefficient of friction indicates that the two surfaces in contact have less resistance?
Yes but make sure you are clear in your understanding between the coefficient of friction and the force of friction. The force of friction is the force that resists the motion of two surfaces moving against one another. The amount of friction is determined by the product of the coefficient of friction and the normal (perpendicular) force that is pressing the two surfaces together. The coefficient of friction is a unit-less constant, that indicates how two surfaces compare to two other surfaces that are being pressed together the same amount. If the normal force is the same on two pairs of surfaces the pair of surfaces with the lowest coefficient of friction will experience the lower force of friction.
Explain why the frictional force between two surfaces increases?
There are basically two ways to increase friction between two surfaces, which are, make them rougher (increased co-efficient of friction) or press them together with greater pressure. In either case, you are increasing the interaction between irregularities on the surfaces. Completely smooth surfaces would, in theory, be frictionless.
Friction between two flats surfaces can be divided into two categories what are the two most common kinds of friction?
The friction felt between two flat surfaces can either be sliding friction or static friction.
Is friction greater when two rough surfaces are rubbed together or two smooth surfaces?
two rough surfaces
What are the two surfaces that affect the friction force between two surfaces?
mass and velocity
What are two factors that affect tha friction force between two surfaces?
The coeffient of friction. The force holding the 2 surfaces together.
What is sticking points between two surfaces that cause friction?
Net force is the sticking point between two surfaces that cause friction.
What friction is due to the microscopic roughness of two surfaces?
its the sliding friction.
What are the two factors that determine the amount of friction between two surfaces?
Friction= Normal force* Coefficient of friction
How can we improve friction?
Press the two surfaces together harder. One fundamental principle of basic physics is that the friction an object experiences is proportional to its normal force (for our purposes, this is basically the force with which it presses into the object it's sliding against).[4] This means that the friction between two surfaces can be increased if the surfaces are pressed into each other with greater force.If you've ever used a set of disc brakes (for instance, on a car or bike) you've observed this principle in action. In this case, pressing the brakes pushes a set of friction-generating pads into metal discs attached to the wheels. The harder the brakes are pushed, the harder the pads get pressed into the discs and the more friction is generated. This can stop the vehicle quickly, but can also release lots of heat, which is why a set of brakes is usually quite hot after heavy braking.
What is the interaction between two surfaces?
friction!
