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- 1. Multiple ChoiceWhat is a simple machine?a device that has only one working motora device that makes work easiera device that makes more work for a jobdevice that is made up of two or more machines
- 2. Multiple ChoiceWhat is the equation for calculating work?force times distanceforce divided by distanceforce plus distancemass times acceleration
- 3. Multiple ChoiceWhat are the units for work?newtonsmetersforcejoules
- 4. Multiple ChoiceA flat sloping surface that connects lower and higher elevations. It makes raising objects easier.wedgescrewleverinclined plane
- 5. Multiple ChoiceAn inclined plane wrapped around a rod forms this simple machineleverpulleyscrewwedge
- 6. Multiple ChoiceA simple machine that consists a rigid bar that pivot about a fixed pointleverpulleywheel and axlefulcrum
- 7. Multiple ChoiceThe "fixed point" on which a lever rests and, or pivots is known as which of the following?screwwheel and axlesee sawfulcrum
- 8. Multiple ChoiceA seesaw is an example of which machine?wedgeleverinclined planepulley
- 9. Multiple ChoiceA door knob is an example of which machine?wheel and axleswrewpulleyinclined plane
- 10. Multiple Choice
Stairs are awedgepulleyinclined planewheel and axle - 11. Multiple ChoiceThis devicewedgeleverincline planewheel and axle
- 12. Multiple ChoiceA _______ is a rope or chain wrapped around a wheel.wedgeleverpulleyscrew
- 13. Multiple ChoiceA 50 N block is lifted 10 m. How much work was done?50000 J5000 J500 J50 J
- 14. Multiple ChoiceIs work being done if I am trying to pick up a box but can not lift it?yesno
- 15. Multiple ChoiceA girl pushes a box across the floor. Did she do work?noyes
- Answer choicesTagsAnswer choicesTags