Friction - Week 2
Quiz by benol consult
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10 questions
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- Q1Which of the following is NOT true about friction?More friction is produced on smooth surfacesIt produces heatIt is a forceIt inhibits motion30s
- Q2Which of the following is NOT a type of kinetic friction?Static frictionRolling frictionFluid frictionSliding friction30s
- Q3The force of friction acts in a direction _______ to the direction of motion of objectperpendicularoppositedownwardssame30s
- Q4The force of friction depends upon _______.Nature of surface of contactMaterial of objects in contactNone of the aboveBoth nature of surface of contact and material of objects in contact30s
- Q5Synovial fluid is a lubricant used to reduce friction. Where would you find synovial fluid?Between the moveable metal parts of a car engine.In an aircraft to reduce drag.In the joints of our skeletonIn the brakes of a car.30s
- Q6Which surface has the least amount of friction?GrassIceCarpetConcrete30s
- Q7One way to increase friction is to use _____________.WaterSandOilWax30s
- Q8What increase friction?Smooth surfacesMore surface areaMore speedRough surfaces30s
- Q9Who was one of the first scientists to study gravity and force?Albert EinsteinSir Isaac NewtonThomas EdisonJames Watt30s
- Q10________ opposes motion between two surfaces in contactGravityFrictionMagnetTension30s