Physical Science Lab

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diamondplatinum
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Re: Physical Science Lab

Postby diamondplatinum » February 7th, 2009, 10:50 am

Well SOOOOOOOOORRRRRRRRRRRRRRRRRYYYYYYY!!!!!!!!! i happen 2 be VERY bored. AND thanx for the info. i really needed it... another question please?
How large do you reccomend? Max? or smaller?
2009 Events: Physical Science Lab, Compute This, Road Scholar.
2010 Events: Physical Science Lab, Compute This, Fossils, Pentathlon.
2011 Events: Optics, Fossils, Towers, Dynamic Planet, Experimental Design.
Oh dear, I've definitely got my work cut out for me xD

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croman74
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Re: Physical Science Lab

Postby croman74 » February 7th, 2009, 10:54 am

Well SOOOOOOOOORRRRRRRRRRRRRRRRRYYYYYYY!!!!!!!!! i happen 2 be VERY bored. AND thanx for the info. i really needed it... another question please?
How large do you reccomend? Max? or smaller?
You want the blades to be as large as possible while fitting within the 30cm diameter circle. If you double the diameter of the circle by the blades, you will get 4 times as much power. Bigger blades=More power.
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bob3443
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Re: Physical Science Lab

Postby bob3443 » February 7th, 2009, 10:55 am

Well SOOOOOOOOORRRRRRRRRRRRRRRRRYYYYYYY!!!!!!!!! i happen 2 be VERY bored. AND thanx for the info. i really needed it... another question please?
How large do you reccomend? Max? or smaller?
i'm not even doing this event but i think Max size, this way there's more surface area where the wind will be pushing it, although making it larger will make it a but heavier.
edit: croman74 beat me to it.
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danger will robinson
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Re: Physical Science Lab

Postby danger will robinson » February 7th, 2009, 4:01 pm

Well SOOOOOOOOORRRRRRRRRRRRRRRRRYYYYYYY!!!!!!!!! i happen 2 be VERY bored. AND thanx for the info. i really needed it... another question please?
How large do you reccomend? Max? or smaller?
If you're bored, then you could try attempting to figure out the problems you are asking us. Then you wouldn't be bored.
Science Olympiad is a tribute to Murphey's Law. This has been proven experimentally.
And no, I'm not a guy...even though my sig says will robsinson. It's a reference to Lost in Space, an ancient sci fi TV show. And the robot is the character who always says the line.

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diamondplatinum
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Re: Physical Science Lab

Postby diamondplatinum » February 7th, 2009, 5:09 pm

Well SOOOOOOOOORRRRRRRRRRRRRRRRRYYYYYYY!!!!!!!!! i happen 2 be VERY bored. AND thanx for the info. i really needed it... another question please?
How large do you reccomend? Max? or smaller?
If you're bored, then you could try attempting to figure out the problems you are asking us. Then you wouldn't be bored.
Thank You. I REALLY need you dumb critisism to make my day better. At the time, i was waiting for my DIAGRAM MEASUREMENTS to load. THEN, i was asking for any reccomendations to make it better so i won't WASTE MATERIAL AND WASTE $$$$$$$$. HAPPY NOW?????
2009 Events: Physical Science Lab, Compute This, Road Scholar.
2010 Events: Physical Science Lab, Compute This, Fossils, Pentathlon.
2011 Events: Optics, Fossils, Towers, Dynamic Planet, Experimental Design.
Oh dear, I've definitely got my work cut out for me xD

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danger will robinson
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Re: Physical Science Lab

Postby danger will robinson » February 7th, 2009, 5:31 pm

I'm sorry. I've been having an extremely lousy day today and my temper was short. :oops:
Science Olympiad is a tribute to Murphey's Law. This has been proven experimentally.
And no, I'm not a guy...even though my sig says will robsinson. It's a reference to Lost in Space, an ancient sci fi TV show. And the robot is the character who always says the line.

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jweil_buddha
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Re: Physical Science Lab

Postby jweil_buddha » February 7th, 2009, 7:15 pm

I hate to give it away but bigger does NOT equal more power I got first at invitationals with 1600 millivolts on high only and my blade is 2.5 inches in diameter
Last edited by jweil_buddha on February 12th, 2009, 5:51 am, edited 1 time in total.
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danger will robinson
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Re: Physical Science Lab

Postby danger will robinson » February 7th, 2009, 9:58 pm

I agree. Otherwise, the blades are bigger than the area of the air currents, if that makes any sense. That means that air won't be hitting all parts of the fan, which equals no turning.
Science Olympiad is a tribute to Murphey's Law. This has been proven experimentally.
And no, I'm not a guy...even though my sig says will robsinson. It's a reference to Lost in Space, an ancient sci fi TV show. And the robot is the character who always says the line.

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Re: Physical Science Lab

Postby A Tang » February 8th, 2009, 12:30 pm

Can someone tell me how to convert from volts to watts?

I searched some websites and I got V x A = W

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ichaelm
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Re: Physical Science Lab

Postby ichaelm » February 8th, 2009, 12:49 pm

Watts measure a rate of energy transfer. Volts measure energy per unit charge. So you can't turn Volts into watts, because they are completely different things.


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