Simple Machines B/Compound Machines C

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noodleluvr
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Postby noodleluvr » April 17th, 2014, 7:20 pm

Is force decomposition necessary to know on higher level tests?
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Re: Simple Machines B/Compound Machines C

Postby Unome » April 23rd, 2014, 2:59 pm

Wow how do u get it to balance that fast and put the numbers in the calculator?!
We have our ways... 8-)
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Postby Unome » April 23rd, 2014, 3:02 pm

Is force decomposition necessary to know on higher level tests?
Sorry for posting twice. I've never needed it, but the biggest competition I've been to is Booth Invitational, where us and the first place team both got a perfect score on the test (I've never actually seen a difficult test for Simple Machines in Science Olympiad).
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Re: Simple Machines B/Compound Machines C

Postby Sciolapedia » April 23rd, 2014, 4:34 pm

How much time does it usually take you guys to balance the lever?

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Re: Simple Machines B/Compound Machines C

Postby bzc11 » April 27th, 2014, 6:18 pm

Hi, I'm doing it at states, and my partner and I can average around 18-20 seconds.
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Re: Simple Machines B/Compound Machines C

Postby bzc11 » April 27th, 2014, 6:21 pm

Sorry for double posting, but when they say MA, do they usually tend to say IMA or AMA? Sorry if it's a stupid question. :oops:
My first year doing Science Olympiad!! Love it! :D
Regionals (2014): Metric Mastery-1st
Sounds of Music-1st
Shock Value-4th
States (2014): Metric Mastery-3rd

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Re: Simple Machines B/Compound Machines C

Postby JustDroobles » April 29th, 2014, 9:08 am

Sorry for double posting, but when they say MA, do they usually tend to say IMA or AMA? Sorry if it's a stupid question. :oops:
First of all, this could vary on the question so always use your best judgement. The normal definition of "mechanical advantage" is the measure of force amplification - so this is essentially the same as AMA, the ratio of force out to force in. However, oftentimes if they are not bothering to specify AMA or IMA they will be talking about an ideal machine, with no friction, so IMA=AMA=MA.

If your intuition fails you, these are potentially decent guidelines: If they ask you about mechanical advantage and give you distance data, use IMA. If they give you force data, use AMA. If it is a multiple choice relating to the definition, go with the force definition.

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Re: Simple Machines B/Compound Machines C

Postby Unome » May 6th, 2014, 11:02 am

Hi, I'm doing it at states, and my partner and I can average around 18-20 seconds.
Did you medal? (I'm betting on 1-6 place for that time)
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Re: Simple Machines B/Compound Machines C

Postby Voltage » May 19th, 2014, 5:34 pm

Does anyone else feel like the Nats test for SM was too easy? That was the general consensus between my teammate and I, so I'm just wondering what the other teams thought.
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Re: Simple Machines B/Compound Machines C

Postby fantasyfan » May 19th, 2014, 5:49 pm

I did find it quite easy, but somehow I messed up on the lever trying to move very quickly, and I don't know what I did :(
Looking forward to anatomy, protein, fossils, and optics (NYS trial) this year!


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