Machines B/C

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Re: Machines B/C

Post by AlfWeg »

adarsh wrote: Mon Nov 11, 2019 3:42 pm Will the ES provide the loops for the masses?
Yes
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stringman
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Re: Machines B/C

Post by stringman »

EastEagle991 wrote: Fri Nov 08, 2019 3:05 pm I read the rules, and I was wondering if we could bring our own weights to the competition?
Based on rule 3.e. I'd say definitely not.
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Re: Machines B/C

Post by Epicbanna4 »

"At the start of the competition block, teams will be given 5 minutes to set up or modify their devices and
use their graphs and/or tables to calibrate them
." Does this only apply to div C (I'm Div B) or else why would Div B need to calibrate with a class 1 lever...? Depends on how you built your lever?
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Re: Machines B/C

Post by EastEagle991 »

stringman wrote: Wed Nov 13, 2019 12:32 pm
EastEagle991 wrote: Fri Nov 08, 2019 3:05 pm I read the rules, and I was wondering if we could bring our own weights to the competition?
Based on rule 3.e. I'd say definitely not.
Based on rule 3.e. I'd say definitely not.
Alright, thanks, I reread the rules and i see what you mean.
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Re: Machines B/C

Post by EastEagle991 »

Does anyone have a machines test exchange?

I would like to know what I need to Study more precisely. (Div B)
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Re: Machines B/C

Post by Fallsbury »

I just started focusing on machines and I'm kinda confused on what the best way to build the lever is. Would you just have a lever hanging off a string or something like that? And how would you attach the weights to the lever?
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Re: Machines B/C

Post by Creationist127 »

Fallsbury wrote: Thu Nov 14, 2019 3:33 pm I just started focusing on machines and I'm kinda confused on what the best way to build the lever is. Would you just have a lever hanging off a string or something like that? And how would you attach the weights to the lever?
The weights will come equipped with loops on top, so they could be attached by hooks on your lever, or just put the loop on the lever. Hanging off a string might not be a good idea, as the lever would rotate as the weights are adjusted, but if you can find a way to minimize that, it might work. Otherwise, any way of attaching a lever to a low-friction fulcrum would work, such as mounting a ball bearing to a board.
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Re: Machines B/C

Post by dayzdnconfused »

Are there any videos to help me teach this to a student? this is my first time attempting simple machines...b division.
i am trying to figure out if two masses will be used. It mentions 3 masses in the rules, they are confusing. Any help at all would be appreciated. Don't worry, we probably won't win. I would at least like my student to be able to participate.
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Re: Machines B/C

Post by waterboy »

What would a graph and its variables consist of and how would you use it to determine the ratio of the two masses?
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Re: Machines B/C

Post by GurtYo »

I am creating my notes and looking at practice tests as well to see the format and things that are important, and the practice test had some measurement conversions. Which measurement conversions (kg to N, cm to m, etc.) should I know>
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