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14 Cards in this Set
- Front
- Back
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A ___ ____ is one that is made up of many compound machines.
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complex machine
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The bigger the difference in gear size the _____ the different in there speed.
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bigger
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When working together if two gears are different sizes,the smaller gear turns _______ than the larger gear.
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faster
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In what ways can two or more gears together change the force put into the machine.
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They can change speed,direction and strengh
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The Faster the machine runs,the _____ the faster the friction produced by the moving parts in it
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faster
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What happens to some energy of machines because of friction?
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Changes Useless heat
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How can you make a machine with mateal parts last longer?
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Oiling and greasing machines regularly will help
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What is he problem with using energy powered by feul?
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air pollution
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Often,_____ preform tasks to boring dangerous or difficult for humans.
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robots
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How hasautomation affect automoblie manufacturing in Japan.
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Almost completly automate (ppl lose jobs)
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What Are Gears?
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Gears are toothed wheels that devolope from a wheel or a lever
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The source of the energy to run a motorcycle is ____
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feul
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Oil and Grease are used to reduce ___________.
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friction
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The burning of fossil feuls produces air
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polluttion
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