Frictional Forces True or False questions

Question

Indicate which statement is true(T) or false(F)? If false then change the word or phrase that is bold and underlined to make it true

_____ For any pair of surfaces, the coefficient of static friction between the surfaces is less than the corresponding coefficient of sliding friction.

_____ Friction always acts with an object’s motion relative to the contact surface.

_____ It is evident from experience that it is more difficult to get a heavy object sliding than it is to keep it sliding. This is because the coefficient of static friction is greater than the coefficient of kinetic friction.

_____ There are two factors which affect the amount of friction that acts on a sliding object. They are the kinetic frictional force and the normal force.

_____ For two given surfaces in contact with one another, the coefficient of kinetic friction is generally more than the corresponding coefficient of static friction.

Answer 1

_____ For any pair of surfaces, the coefficient of static friction between the surfaces is less than the corresponding coefficient of sliding friction.

___F__ Friction always acts against an object’s motion relative to the contact surface.

___T__ It is evident from experience that it is more difficult to get a heavy object sliding than it is to keep it sliding. This is because the coefficient of static friction is greater than the coefficient of kinetic friction.

___T__ There are two factors which affect the amount of friction that acts on a sliding object. They are the kinetic frictional force and the normal force.

___F__ For two given surfaces in contact with one another, the coefficient of kinetic friction is generally less than the corresponding coefficient of static friction.