Shock Value B [Trial]

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Shock Value B [Trial]

Postby Jim_R » March 31st, 2012, 1:54 pm

Discussion for Shock Value, a B division trial in California.
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Re: Shock Value B [Trial]

Postby SirBobo » March 31st, 2012, 7:51 pm

Is it going to be back next year?
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Re: Shock Value B [Trial]

Postby siciscio » April 1st, 2012, 2:14 pm

WindPower, Bridges.

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Re: Shock Value B [Trial]

Postby bluejay » April 2nd, 2012, 9:18 pm

i learned about the right and left hand rule. But when are you suppose to use the right hand rule and when are you suppose to use the left hand rule? :?: :?:
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Re: Shock Value B [Trial]

Postby siciscio » April 3rd, 2012, 3:13 pm

Right hand is used when electric generators are involved and left hand is used when electric motors are involved. It's better explained on this site:
http://en.wikipedia.org/wiki/Fleming's_ ... -hand_rule
Hope it helps :)
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Re: Shock Value B [Trial]

Postby Itsanthonguise » April 3rd, 2012, 3:40 pm

How do compasses work when theyre near a circuit? IDUNGETIT T^T :cry:
2012 Events
State: Shock Value - 8th place
Nationals: Helicopter Egg Drop - 6th place
2013 Events
Regionals:
Helicopters-2nd place
Rotor Egg Drop-3rd place
State:
Helicopters:-5th place
Rotor Egg Drop-5th place
Nationals:
Helicopters:-17th place
Rotor Egg Drop-46th place

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Re: Shock Value B [Trial]

Postby Itsanthonguise » April 3rd, 2012, 3:46 pm

siciscio wrote:Right hand is used when electric generators are involved and left hand is used when electric motors are involved. It's better explained on this site:
http://en.wikipedia.org/wiki/Fleming's_ ... -hand_rule
Hope it helps :)



I still dont get it, cohs if you grab the wire one way(for the last picture on the page) cant you just go on the other side and grab it the other way ? :shock:
2012 Events
State: Shock Value - 8th place
Nationals: Helicopter Egg Drop - 6th place
2013 Events
Regionals:
Helicopters-2nd place
Rotor Egg Drop-3rd place
State:
Helicopters:-5th place
Rotor Egg Drop-5th place
Nationals:
Helicopters:-17th place
Rotor Egg Drop-46th place

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Re: Shock Value B [Trial]

Postby bluejay » April 3rd, 2012, 8:39 pm

I have a little problem with voltage drops. How do you find it out?
Mistakes are another way for you to learn.

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Re: Shock Value B [Trial]

Postby bluejay » April 3rd, 2012, 8:41 pm

siciscio wrote:Right hand is used when electric generators are involved and left hand is used when electric motors are involved. It's better explained on this site:
http://en.wikipedia.org/wiki/Fleming's_ ... -hand_rule
Hope it helps :)


it helped a lot. THANKS!
Mistakes are another way for you to learn.

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Re: Shock Value B [Trial]

Postby andrewwski » April 3rd, 2012, 10:03 pm

bluejay wrote:I have a little problem with voltage drops. How do you find it out?


That depends on the circuit and the component. But generally a combination of Ohm's Law or Kirchoff's Laws.
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Re: Shock Value B [Trial]

Postby Itsanthonguise » April 4th, 2012, 2:56 pm

andrewwski wrote:
bluejay wrote:I have a little problem with voltage drops. How do you find it out?


That depends on the circuit and the component. But generally a combination of Ohm's Law or Kirchoff's Laws.



Is there a difference between total voltage drop and voltage drop?
2012 Events
State: Shock Value - 8th place
Nationals: Helicopter Egg Drop - 6th place
2013 Events
Regionals:
Helicopters-2nd place
Rotor Egg Drop-3rd place
State:
Helicopters:-5th place
Rotor Egg Drop-5th place
Nationals:
Helicopters:-17th place
Rotor Egg Drop-46th place

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Re: Shock Value B [Trial]

Postby bluejay » April 4th, 2012, 3:09 pm

andrewwski wrote:
bluejay wrote:I have a little problem with voltage drops. How do you find it out?


That depends on the circuit and the component. But generally a combination of Ohm's Law or Kirchoff's Laws.


so..what if a problem states that a 4.0 ohm resistor, a 8.0 ohm resistor, and a 10.0 ohm resistor are connected in series across an 11-V battery, what is the total volatage drop across the 4.0 ohm and 8.0 ohm resistors? and how do you find it out? :arrow: :?:
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Re: Shock Value B [Trial]

Postby Schrodingerscat » April 4th, 2012, 3:31 pm

bluejay wrote:
andrewwski wrote:
bluejay wrote:I have a little problem with voltage drops. How do you find it out?


That depends on the circuit and the component. But generally a combination of Ohm's Law or Kirchoff's Laws.


so..what if a problem states that a 4.0 ohm resistor, a 8.0 ohm resistor, and a 10.0 ohm resistor are connected in series across an 11-V battery, what is the total volatage drop across the 4.0 ohm and 8.0 ohm resistors? and how do you find it out? :arrow: :?:


One method would be to replace all three resistors with a single 22.0 ohm resistor. Applying Ohm's law, you know that there is a 0.50 ampere current across the resistor. Since there are not any nodes in the middle, KCL tells you that this 0.50 ampere current will flow through all three resistors. You can then apply Ohm's law again to calculate that across the 12.0 ohm equivalent resistor (4.0 and 8.0), V=0.50*12.0 ohms would be 6.0 volts. You could also solve it as a voltage divider between the 12.0 equivalent and the 10.0 ohm resistor to get the same answer.

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Re: Shock Value B [Trial]

Postby bluejay » April 4th, 2012, 6:56 pm

wow...i never thought about it that way...now i get it.
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Re: Shock Value B [Trial]

Postby fleet130 » April 5th, 2012, 11:14 am

Information expressed here is solely the opinion of the author. Any similarity to that of the management or any official instrument is purely coincidental! Doing Science Olympiad since 1987!


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