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随意 问题

Does anyone here understand physics?

Specifically, how waves are used for communication and what a step up/step down transformer is?


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...Am I the only one here that actually likes physics? >.<
hetalianstella posted 一年多以前
 Book-Freak posted 一年多以前
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随意 答案

unaiza said:
I just hate Physics !
Newtons law,communication,step up,step down ....ugggggg
It fucks :/
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posted 一年多以前 
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Same
Book-Freak posted 一年多以前
Darkus-eliox said:
Ok
If the voltage applied to the primary coil is to be increased,the number of turns in the secondary would be larger as compared to number of turns in the primary.Such transformer is known as a step up transformer
According to the above equation ,if voltage applied across the primary coil is to be decreased that means Es is less than Ep,then Ns would also be less as compared to Np. that is the number of turns in secondary coil would be smaller than the number of turns in the primary.Such a transformer is called step down transformer
As for the communication through waves I don't know about that check the answer of that from the internet
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posted 一年多以前 
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Thank 你 - thankfully, 变形金刚 didn't come up in the exam!
Book-Freak posted 一年多以前
summer2987 said:
wait what .
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 wait what .
posted 一年多以前 
msbass said:
I FUCKING HATE PHYSICS!!!!
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posted 一年多以前 
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ikr. I have an exam in it tomorrow.
Book-Freak posted 一年多以前
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good luck ^.^ Well I wrote one on Monday and I did terribly..like always..
msbass posted 一年多以前
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Thank 你 - I don't know how well it went :(
Book-Freak posted 一年多以前
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你 are welcome..I hope 你 have good results ^.^
msbass posted 一年多以前
LUVJosh said:
Nope I have no clue...but my best friend Xante might know
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posted 一年多以前 
Drayoth said:
...
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posted 一年多以前 
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Physics Is dumb but not to complicated.
Drayoth posted 一年多以前
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Eh, physics is...boring .__. not very challenging, 你 know?
prussiaducky posted 一年多以前
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Genetics is so much 更多 interesting
prussiaducky posted 一年多以前
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I'm 更多 towards astronomy
Drayoth posted 一年多以前
prussiaducky said:
Ehhh...I never learned Physics in my life, and I probably won't ever learn it formally until 11th grade, but from your 问题 is within my knowledge range. We learned this in a two 日 cramping session a 月 以前 when MCAS was about to begin.


So, basically, the "waves" you're talking about are probably radio waves, which should be specified since there are many types of waves. Basically, sound waves are converted into electromagnetic waves, and are then encoded onto an electromagnetic wave in the wave frequency. Radio waves can go pretty far, which makes it ideal for communication. Sorry, I'm not good at explaining.

I think a step up transformer is something that increases the voltage power in a certain thing? I think a step down should do the opposite, and decrease the voltage. My dad has one in case of something, and it has mercury in it (scary). I never really knew what it did, but it seems to do that...holy frick, sorry, don't trust me...read a physics book in the library.
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posted 一年多以前 
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*Physics
prussiaducky posted 一年多以前
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That's not all physics is.
Drayoth posted 一年多以前
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This is pretty good for someone who has never studied physics (you're lucky, 由 the way, I've had to do it since I was 11)!
Book-Freak posted 一年多以前
Bluekait said:
Haven't taken the class yet. Why don't 你 go and ask Sheldon Cooper?
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posted 一年多以前 
Mrs-X said:
I haven't been into physics since high school... 3 years ago, so I sort of forgot pretty much everything, sorry.
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posted 一年多以前 
springely said:
>Random club
>Not expecting 12 年 olds
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posted 一年多以前 
polarwagon15 said:
Step up/step down 变形金刚 usually converts low voltage currents to higher ones and lower ones to higher ones respectively, I think. As for the waves, I think it's frequency has something to do with it traveling. You're better off Googling this one.
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posted 一年多以前 
pearlxashxdawn said:
dude, i'm 13~ and 潮流粉丝俱乐部 let's 13 years old's :P
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posted 一年多以前 
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Never too early to learn some science.
polarwagon15 posted 一年多以前
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13? I've had to learn physics since I was 11!
Book-Freak posted 一年多以前
priti921 said:
i like physics........:-D
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posted 一年多以前 
AlOoOosh said:
Physics is my enemy ...Hate it....
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posted 一年多以前 
Seastar4374 said:
I have to take physics this year.... -____- yup I already know I am going to be fucking lost.
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posted 一年多以前 
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