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- 1. Multiple ChoiceWhich is the following is an example of work, to a scientist?solving a mental math problemcarrying a book across the roompushing against the floorlifting a chair of the floor?
- 2. Multiple ChoiceA simple machine is a device that helps to reduce the amount of _____ required to work.forceenergywork
- 3. Multiple Choice____ is done when a force is applied over a distance.energyworkforce
- 4. Multiple ChoiceA _____ is a fixed bar that us free to move around a fixed point known as a fulcrum.pulleyinclined planelever
- 5. Multiple ChoiceA ______ is a grooved wheel with a rope running along the groove.leverpulleyscrew
- 6. Multiple ChoiceA _____ pulley only changes the direction of the force.movablefixedalternate
- 7. Multiple ChoiceA sloping force, like a ramp, that reduces the mount of force required to lift an object.screwwheel and axleinclined plane
- 8. Multiple ChoiceHow can an incline plane reduce the amount of force required to lift an object?increase the length of the rampincrease the height of the rampdecrease the length of the ramp
- 9. Multiple ChoiceA simple machine that can split things apart or hold a door open.wedgescrewlever
- 10. Multiple ChoiceA simple machine that is made up of an incline plane wrapped around a cylinder. It is often used to hold things together.leverscrewwedge
- 11. Multiple Choice
Flagpolewedgepulleyincline planewheel and axle - 12. Multiple ChoiceLightbulbwedgepulleyincline planescrew
- 13. Multiple ChoiceStairswedgepulleyinclined planewheel and axle
- 14. Multiple ChoiceThis devicewedgeleverincline planewheel and axle
- 15. Multiple ChoiceThis devicewedgeleverincline planewheel and axle
- 16. Multiple ChoiceScrews and wedges are examples of what other type of simple machine?pulleyinclined planeleversgears
- 17. Multiple ChoiceWhat type of simple machine is this?wheel and axlegearleverinclined plane
- 18. Multiple ChoiceName this simple machine.ScrewLeverPulleyWedge
- 19. Multiple ChoiceWhat type of simple machines does the photo show?Lever and WedgeInclined Plane and LeverPulley and WedgeLever and Screw
- 20. Multiple ChoiceTammy and Johnny are loading boxes onto identical trucks. Tammy slides the boxes up a ramp that is 1 meter long. Johnny uses a ramp that is 2 meters long. Who uses more force?JohnnyTammy
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