Energy Transfers

Kordo
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Re: Energy Transfers

Postby Kordo » January 9th, 2015, 1:45 pm

I first ran into this problem judging a state competition about 15 years ago and all of the judges decided that if the student could describe the transfer as the way they list it and back it up with a logical argument then we counted it. A mission possible meet is not going to decide the debate on the issue, but if a student can explain accurately why they think it's chemical, then I can't see how you can deny them the transfer.

olynewbie
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Re: Energy Transfers

Postby olynewbie » January 15th, 2015, 1:05 pm

Would breaking a circuit connection using a ball bearing count as ME? Or does it only count if I connect a circuit.

bernard
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Re: Energy Transfers

Postby bernard » January 15th, 2015, 6:22 pm

Would breaking a circuit connection using a ball bearing count as ME? Or does it only count if I connect a circuit.
What happens after the circuit is broken? The end energy form will whatever form of energy is used for the next step.
"One of the ways that I believe people express their appreciation to the rest of humanity is to make something wonderful and put it out there."

olynewbie
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Re: Energy Transfers

Postby olynewbie » January 15th, 2015, 6:59 pm

Would breaking a circuit connection using a ball bearing count as ME? Or does it only count if I connect a circuit.
What happens after the circuit is broken? The end energy form will whatever form of energy is used for the next step.
The circuit will power an electromagnet which holds a steel ball bearing. When the circuit is broken, the ball bearing will fall and do something like hitting a switch.

goodcheer
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Re: Energy Transfers

Postby goodcheer » January 19th, 2015, 8:31 am

Would breaking a circuit connection using a ball bearing count as ME? Or does it only count if I connect a circuit.
What happens after the circuit is broken? The end energy form will whatever form of energy is used for the next step.
The circuit will power an electromagnet which holds a steel ball bearing. When the circuit is broken, the ball bearing will fall and do something like hitting a switch.

If the circuit is opened or closed by a lever type switch, that step would be mechanical. So, you could have several possibilities: M-E, E-M, M-E-M, etc.


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