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- 1. Multiple ChoiceThe unit used to measure work is theWattNewtonJouleMeter
- 2. Multiple ChoiceA ______________ is a rope or chain wrapped around a wheel.wedgeleverpulleyscrew
- 3. Multiple ChoiceAny device that makes work easier is called a ______________________.Jouleproplevermachine
- 4. Multiple ChoiceThe efficiency of a machine can be increased by reducing __________________________.effortforcefulcrumfriction
- 5. Multiple ChoiceThe unit used to measure power is theWattNewtonJouleNewton*meter
- 6. Multiple ChoiceA simple machine with a flat, sloped surface is a(n) __________________.leverwheel and axleinclined planepulley
- 7. Multiple ChoiceWhich of the following is the best example of work being done.doing homeworklifting a boxpushing a stationary boxholding a box
- 8. Multiple ChoiceNo machine in existence has 100% efficiency due to ____________________.magicfrictionsmokeinput
- 9. Multiple ChoiceWhich simple machines are found on a hammer?lever onlywedge and planeaxle and leverscrew and pulley
- 10. Multiple ChoiceWork done = Force x _________a. distanceb. accelerationc. velocityd. speed
- 11. Multiple ChoiceForce is a _____ or _______simple complexpush pullup downin out
- 12. Multiple ChoiceIn which of these cases is work being done?A student sleepsA student pushes a locked door that does not movea student picks up and carries his chair into another roomA student sits on the carpet
- 13. Multiple ChoiceIf you use a crowbar to get the lid off of a bucket, what simple machine are you using?Inclined PlanePulleyWheel and AxleLever
- 14. Multiple Choice
Flagpolewedgepulleyincline planewheel and axle - 15. Multiple ChoiceStairswedgepulleyinclined planewheel and axle
- 16. Multiple ChoiceWhat is the unit for mass?Kilogram (Kg)Newton (N)Joule (J)Watt (W)
- 17. Multiple ChoiceThe fixed point on the lever is calledloadresistancebarfulcrum
- 18. Multiple ChoiceTwo or more simple machines used together is acompound machinewheel and axleblock and tacklemechanical advantage
- 19. Multiple ChoiceThe amount of work done in a certain amount of time is known asworkeffort forceresistance forcepower
- 20. Multiple ChoiceWhat type of simple machine is found on the cap of a pickle jar?leverinclined planepulleyscrew
- 21. Multiple ChoiceWhich is not a type of simple machine?springscrewpulleywedge
- 22. Multiple ChoiceAn inclined plane wrapped around a rod forms this simple machineleverpulleyscrewwedge
- 23. Multiple ChoiceAn ax is an example of apulleyinclined planescrewwedge
- 24. Multiple ChoiceA door knob is an example of a ____________PulleyLeverWheel and axleInclined Plane
- 25. Multiple ChoiceA ramp is an example of a(n) ____________________.wheel and axleinclined planeleverpulley
- 26. Multiple ChoiceA _____________________ is an inclined plane that moves.screwpulleywedgewheel
- 27. Multiple ChoiceThis devicewedgeleverincline planewheel and axle
- 28. Multiple ChoiceThis devicewedgeleverincline planewheel and axle
- 29. Multiple ChoiceHow much work is done if I use 10 Newtons to move an object 3 meters?30 Newtons13 meters30 Joules30 meters
- 30. Multiple ChoiceWhich simple machine is shown in the picture?wheel and axleleverwedgepulley
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