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What are ways to increase friction?
1)increasing the roughness of the surface 2)increasing the mass of the object
What is the relationship between mass and force of sliding friction?
they are directly proportional, the greater the mass, the greater the sliding friction
What are different forms of friction?
Static friction and sliding friction. Static friction is the force that stops a mass from sliding and sliding friction is the force that slows down an object that is already sliding. Static friction is stronger than sliding friction, and this difference is reflected in different coefficients of friction for sliding and static friction for a given surface.
Is sliding friction caused by the attraction between two surfaces?
Yes. Without sliding friction or rolling friction, we would not be able to walk. It is the relationship between gravity, friction, and mass.
When the block of mass is increased is there an increase in the value of coefficient of kinetic friction?
No, coefficient of friction is dependent on the materials in contact, not their mass. However the FORCE of friction will increase as the mass increases in this case.
What two factors affect the motion of an object sliding downhill?
Mass (gravity) & friction!
Would adding mass increase friction?
no
Which is greater to overcome fluid friction or sliding friction?
As a rule, sliding friction is greater to overcome than fluid friction. However, the variables could be manipulated to show it in both lights. The mass, weight, surface area, types of surfaces, speed, ect... are all variables in which the amount of force is needed to overcome sliding friction. While density and viscosity are major variables in fluid friction.
What are ways to increase inertia?
by increasing the mass of an object.larger the mass more will be the inertia
Does increasing mass increase acceleration?
not if the object isn't move, no
Investigate-how friction increases with increase of size of an object?
The force of friction on an object is equal to the coefficient of friction times the force perpendicular to the surface (normal force). When the mass of an object increases, the normal force increases, and the force of friction also increases. However, because the equation does not involve surface area, increasing surface area has no affect on the force of friction.
How is the density affected by increasing the mass whiule holding the volume constant?
Holding volume constant while increasing mass will increase density. density = mass / volume
