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- 1. Multiple ChoiceWhat is a friction force acting on an NON- moving object.Static frictionFuild frictionRolling frictionSliding Friction
- 2. Multiple ChoiceWhat type of fluid friction acts on an object moving through the air?FrictionNormal ForceGravityAir resistance
- 3. Multiple ChoiceFriction is a force that acts in a(n) ___________ direction relative to a moving object.similaroppositeparallelperpendicular
- 4. Multiple Choice
As the child moves down the slide, they mostly experience the effect of ___________.Rolling FrictionSliding FrictionFluid FrictionStatic Friction - 5. Multiple ChoiceThe force that two surfaces exert on each other as they rub against each other.gravityfrictionmassweight
- 6. Multiple ChoiceTwo factors that affect frictionmass and distancetypes of surfaces and how hard they are pushed togetherforce and distancemass and direction
- 7. Multiple ChoiceFriction of an object rolling across a surface.sliding frictionrolling frictionfluid frictionstatic friction
- 8. Multiple ChoiceThe force of friction acts in the ___________ direction of the motionoppositesame
- 9. Multiple ChoiceWhich type of friction occurs when objects are not moving?staticslidingfluidrolling
- 10. Multiple ChoiceWhat are 2 factors that determine the amount of friction between 2 objects?Force and roughness between surfaceshills and valleys and how smooth or rough the surface isAmount of forceThe force and the weight exerted on the surfaces
- 11. Multiple ChoiceT/F: Fluid friction between an object and air is called air resistance.TrueFalse
- 12. Multiple Choice
Rough surfaces have
more friction
less friction
same level of friction
I don't know
- 13. Multiple Choice
Friction opposes motion.
True
False
- 14. Multiple ChoiceHow does friction affect speed?more friction decreases speedmore friction increases speedless friction decreases speed
- 15. Multiple ChoiceHow can friction be reduced?reduce the force acting between the 2 surfacesreduce the roughness of the 2 surfaces coming in contactuse wax, grease or oilall of the above are ways of reducing friction
- Answer choicesTagsAnswer choicesTags