Every group must have… 1) Only one person writing on board 2) One score keeper 3) One person to...
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Transcript of Every group must have… 1) Only one person writing on board 2) One score keeper 3) One person to...
![Page 1: Every group must have… 1) Only one person writing on board 2) One score keeper 3) One person to hold up white board 4) One speaker for the group Everyone.](https://reader036.fdocuments.us/reader036/viewer/2022082600/5a4d1b297f8b9ab0599984b6/html5/thumbnails/1.jpg)
Every group must have…1) Only one person writing on board2) One score keeper 3) One person to hold up white board 4) One speaker for the groupEveryone else on team must brainstorm the answer
Rules- Do not call out answer wait to be called upon before answering a question- Eyes on your own board
WINNING TEAM WILL RECEIVE EC on TEST
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Sentence Completion -2 pts each (30 secs)
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1) An inclined plane wrapped around a cylinder post is a ________________.
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2) The rate at which work is done is called __________.
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3) The work output of a machine divided by the work input is the ____ of the machine
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4) When two or more simple machines work together, they are called a _____________________.
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5) A slanted surface used to raise an object is a ____________________. ____________________.
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Multiple Choice ( 4 pts) (1 minute)
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6) A device that does work with only one movement and changes the size or direction of a force is a(n)____.a. compound machineb. screwc. effort machined. simple machine
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7) A bar that is free to pivot about a fixed point is a ____.a. fulcrumb. rampc. leverd. wedge
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8) An inclined plane with one or two sloping sides forms a machine called a ____.a. pulleyb. rampc. leverd. Wedge
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9) The amount by which a machine multiplies an input force is called the ____.a. efficiency factorb. mechanical advantagec. fulcrumd. resistance force
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10) A winding mountain road is an example of a(n) ____.a. Leverb. wedgec. inclined planed. wheel and axle
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Short Answer- must answer in Short Answer- must answer in complete sentences with complete sentences with correct spelling for full correct spelling for full credit (2 minutes, 10 pts credit (2 minutes, 10 pts each)each)
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11) Define lever and give one example
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12) Define wedge and give one example
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13) How much power is needed to do 1,400 J of work on a box if it takes 2s to lift it?
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14) A weightlifter lifts a 1,230-N barbell 4 m in 5 s. How much power was used to lift the barbell?
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15) How does low air pressure in bicycle tires reduce the efficiency of a bicycle?