Which of the following statements are true about friction?Friction is a forceFriction is a non-contact forceFriction is a contact forceFriction is a type of support force

Which of the following statements about friction is TRUE?A. Friction opposes motion of objects.B. Friction occurs between non-rubbing surfaces.C. Friction causes moving objects to move faster.D. Friction acts in a direction similar to the direction of an object’s motion

Which of the following statements about friction is TRUE?A. Friction opposes motion of objects.B. Friction occurs between non-rubbing surfaces.C. Friction causes moving objects to move faster.D. Friction acts in a direction similar to the direction of an object’s motion.2. Will it be easier for a person to push a table on a carpeted floorthan on tiled floor?A. No, because the carpeted floor is rough, so friction is lesser.B. No, because the carpeted floor is rough, so friction is greater.C. Yes, because the carpeted floor is smooth, so friction is lesser.D. Yes, because the carpeted floor is smooth, so friction is greater.3. When can we say that friction on a floor is greater?A. If the floor is wet.B. If the floor is tiled.C. If the floor is rough.D. If the floor is smooth.4. Which force causes a rolling ball to stop after a few seconds?A. frictionB. gravityC. magneticD. motion5. Why is difficult to move heavy objects on a rough surface?A. rough surface is slipperyB. there is no friction on a rough surfaceC. there is lesser friction on a rough surfaceD. there is greater friction on a rough surface6. When you are travelling along a road, how does the wet road affect friction?A. It increases friction.B. It decreases friction.C. It maintains friction.D. It increases and decreases friction.What I Know

Which of the following statements is correct about friction?Group of answer choicesFriction always acts on stationary objectsFriction always acts in the same direction to the direction of motion of an objectFriction is measured in kilogramsFriction always acts in the opposite direction to the direction of motion of an object

Which of the following statements about friction is NOT correct? A.The force of kinetic friction is less than the force of static friction B.The force of kinetic friction between two surfaces is independent of the areas in contact provided the normal reaction is unchanged C.The force of rolling friction between two surfaces is less than the force of sliding friction D.The angle of friction is the angle between the normal reaction and the force of friction E.Friction may be reduced by lubrication

Label each of the following as a contact or noncontact force.  Type "contact" or "noncontact" for each question.a)  gravity   b)  sliding friction  c)  rolling friction   d)  electric force   e)  static friction   f)  fluid friction   g)  tension   h)  magnetic force