What factors affect fluid friction?

Whenever two things rub together, some of the energy they have is lost to friction. Basically, in things like car engines, the wheels of your skates, and the chain of your bike, friction is a force that slows you down. In order to overcome friction, you have to work harder.

The friction force depends on two factors:a) The materials that are in contact. The two materials and the nature of their surfaces. ... b) The force pushing the two surfaces together. Pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other.

Objects change their motion because unbalanced forces act on them. There are four main factors that affect the motion of objects. These factors are force, friction, inertia, and momentum.

The speed and direction of the wind is governed by three forces; the pressure gradient force (PGF), the Coriolis Force and friction. PGF is the force produced by differences in barometric pressure between two locations and is responsible for the flow of air from an area of high pressure to an area of low pressure.

Which of the following factors affects the permeability of soil? Explanation: Grain size, properties of pore fluid, structural soil arrangement of soil particles, entrapped air and foreign matter and adsorbed water.

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As winds blows along the surface of the water, it creates friction. The stronger the wind blows, the greater the friction, and the greater the waves. Waves can increase the turbidity of the water, pulling currents and nutrients along with them. All of these factors influence the way fish will behave.

The frictional force between two bodies depends mainly on three factors: (I) the adhesion between body surfaces (ii) roughness of the surface (iii) deformation of bodies.

As winds blows along the surface of the water, it creates friction.

The stronger the wind blows, the greater the friction, and the greater the waves.

Waves can increase the turbidity of the water, pulling currents and nutrients along with them.

All of these factors influence the way fish will behave..

Factors that affect fluid flowThe viscosity, density, and velocity of the fluid.Changes in the fluid temperature will change the viscosity & density of the fluid.The length, inner diameter, and in the case of turbulent flow, the internal roughness of the pipe.More items...

In this module, you will be able to: - Describe various factors that affect friction such as: The roughness of the surface, the mass of the object, and the area of contact.

Force and friction affect our daily lives in numerous amounts of ways.

For instance, when a football is kicked, it moves faster later after some time its force decreases due to friction.

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When the brakes are applied the friction on the pads cause the bike to stop.

Also, force keeps us from floating off into space..

Pipe length (L). Friction pushes against the flow, resulting in pressure loss as the pipe length increases. Pipe length also factors in fittings, which increase the “length” input for the equation.

Engine friction is affected by the stroke-to-bore ratio because of two competing effects: crankshaft bearing friction and power-cylinder friction. As the stroke-to-bore ratio decreases, the bearing friction increases because the larger piston area transfers larger forces to the crankshaft bearings.

When you apply a greater normal force, the frictional force increases, and your coefficient of friction stays the same. ... One more thing, the coefficient of friction is a property of the materials being "rubbed", and this property usually does not depend on the normal force.

Friction is a resistive force to motion. When two bodies move against each other some of the kinetic energy is converted to heat energy due to friction. This reduces the total kinetic energy in the system.

In this problem, work done by friction will be negative because the force is applied in the opposite direction as the motion, and will decrease the initial energy, giving us a Final Energy result that is less than the initial energy because energy is lost to friction..

The average friction coefficient decreased slowly with the increase of temperature during the tests under temperature level of 30°C~100°C, 30°C~200°C, and 30°C~300°C. And the friction coefficient was higher in the test of 100°C~200°C, while the lowest friction coefficient appeared in the test of 200°C~300°C.

The static friction coefficient increases with increasing humidity; this effect is much more pronounced at low specimen temperatures. ... The friction decreases with increase of load independently of the effect of frictional heating or of humidity.

The frictional force does not depend on mass or surface area. All that really matters is the types of materials that are in contact. ... When everything is stationary, the objects feel static friction. When they are moving, kinetic friction takes over.

Amontons' friction law states that the shape of a body that is sliding on a dry surface will have no effect on the coefficient of friction ( ).

Also, the coefficient of friction doesn't depend on the mass of the object.

As long as you are using the same shoe the friction will always be the same, the weight doesn't affect the friction. What you are really I think trying to ask is about how much force it will take to move 2 objects across the rock if the only difference is weight.

How does friction affect energy transformations? Friction transforms kinetic energy into thermal energy. ... Your body transforms the chemical energy from your food into kinetic energy.

Friction works against the motion and acts in the opposite direction. When one object is sliding on another it starts to slow down due to friction. This means it loses energy. ... It changes from moving energy (also call kinetic energy) to heat energy.

The force of friction opposes the motion of an object, causing moving objects to lose energy and slow down. When objects move through a fluid, such as air or water, the fluid exerts a frictional force on the moving object. The frictional force from a fluid is called a drag force.

Friction decreases the kinetic energy which decreases the mechanical energy.

How does grease or oil affect the coefficient of friction? ... It stops the surfaces coming into direct contact, so they can slide easily over one another and reduce friction.

When a skate moves over the surface of ice, the friction between the skate and the ice generates heat that melts the outermost layer of ice. But ice is still slippery even when you're standing still. If you stand on ice without moving, no friction exists to generate heat, yet the ice is still slippery.

Objects change their motion because unbalanced forces act on them.

There are four main factors that affect the motion of objects.

These factors are force, friction, inertia, and momentum..

What are the factors affecting friction?Roughness/smoothness of the sliding object.Roughness/smoothness of the surface.Shape/design of the object.Normal force acting upon the sliding bodies.Dry friction is independent of the surface area of a contact.Type of friction involved(rolling/sliding)Sliding surface's state of matter (solid/fluid)May 14, 2020

The strength of the force of friction depends on two factors; the type of surfaces involves and how hard the surfaces push together, What is one way you could reduce the friction between two surfaces? Ball bearing are one way of reducing friction between two surfaces.

The nature of the surface (smoothness or roughness) affects the friction. Smooth surfaces have lesser irregularities. The lesser the irregularities, the lesser the tendency to lock. The lesser the tendency to lock with another object, the lesser the friction (that is tendency to oppose motion).

Friction force depends mainly on the above listed factors, lets discuss them in detail.The smoothness of the sliding object. ... The smoothness of the surface. ... The force between the two bodies in the normal direction (perpendicular to sliding direction) ... Friction also depends on the design of an object.More items...•May 14, 2020

Friction does not depend on the amount of surface area in contact between the moving bodies or (within certain limits) on the relative speed of the bodies. It does, however, depend on the magnitude of the forces holding the bodies together.

Q16) State two factors which directly affect the force of friction . Solution : The smoothness of the surface. Mass of the body.

Friction may slow the car down as it moves along the road, but it also is the force that enables the car to move forward at all. It is the friction force that keeps the tires from sliding on the road. ... So, it is the force of friction that makes a car accelerate forward and also decelerate to a stop.

Frictional force depends on the nature of the surface in contact. The rougher the surface, the greater the friction involved. Frictional force is proportional to the pressing force, which is the weight of the body.

There are four main factors that affect the motion of objects. These factors are force, friction, inertia, and momentum.

Learning new concepts is harder for some people than for others. In psychology, 'fluid reasoning' is what we call the learning of new 'tricks' or the solving of new problems. If your child struggles with learning new ways to do things, his or her fluid reasoning may be impaired.

The velocity of a river is determined by many factors, including the shape of its channel, the gradient of the slope that the river moves along, the volume of water that the river carries and the amount of friction caused by rough edges within the riverbed.

Fluid flow in pipes is affected by many different factors:The viscosity, density, and velocity of the fluid.Changes in the fluid temperature will change the viscosity & density of the fluid.The length, inner diameter, and in the case of turbulent flow, the internal roughness of the pipe.More items...

In the process of doing its job, the transmission fluid can collect a considerable amount of debris. What can happen is that the acceleration can be affected and also gear shifting. The particles make it more difficult for the transmission fluid to work properly.

This little amount of friction between the bottom of the bobsled and the ice affects the velocity of the bobsled; the sled tends to go faster when there is not a lot of friction as there is no opposing force to that of the bobsled to make the sled slow down.

Pipe length (L). Friction pushes against the flow, resulting in pressure loss as the pipe length increases. Pipe length also factors in fittings, which increase the “length” input for the equation. Velocity of fluid (v): As flow velocity increases, pressure loss also increases and efficiency decreases.

Pipe length (L). Friction pushes against the flow, resulting in pressure loss as the pipe length increases. Pipe length also factors in fittings, which increase the “length” input for the equation. Velocity of fluid (v): As flow velocity increases, pressure loss also increases and efficiency decreases.

SummaryThe factors that affect buoyancy are… the density of the fluid. the volume of the fluid displaced. the local acceleration due to gravity.The buoyant force is not affected by… the mass of the immersed object. the density of the immersed object.

The main factors that control metamorphic processes are: The mineral composition of the parent rock. The temperature at which metamorphism takes place. The amount and type (direction) of pressure during metamorphism. The amount and type of fluid (mostly water) that is present during metamorphism.

The stress state along a fault affects its stability, and if it is changed, faults that were formerly inactive can be reactivated.

Several factors, such as change in pore fluid pressure, may alter stress condition..

The friction force depends on two factors:a) The materials that are in contact. The two materials and the nature of their surfaces. ... b) The force pushing the two surfaces together. Pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other.