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Physics Project - Wind Turbine

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protokatie:
When I saw the word motor I figured you had rigged a DC motor to act as a generator...  :dunno   Then again you did say you could only find an AC one, so I was a bit perplexed...

Flip_Willie:

--- Quote from: protokatie on November 13, 2009, 12:22:24 am ---When I saw the word motor I figured you had rigged a DC motor to act as a generator...  :dunno   Then again you did say you could only find an AC one, so I was a bit perplexed...

--- End quote ---

We had wanted a DC motor to act as a generator; however, it turned out that we were donated an AC motor.

From my understanding, the only difference between a motor and a generator is where the work is being done. If you apply a current to a motor, the shaft rotates. If you manually rotate the shaft on a motor, it produces electricity. This is due to the principle of electromagnetic induction.

Flip_Willie

RayB:
Hey --bags of cream-filled twinkies--, if he used a motor, then his terminology wasn't wrong. I can use a pencil to stab you in the eye, but that doesn't make it a "weapon". I still stabbed you with a PENCIL.

Ond:

--- Quote from: RayB on November 13, 2009, 01:24:03 am ---Hey --bags of cream-filled twinkies--, if he used a motor, then his terminology wasn't wrong. I can use a pencil to stab you in the eye, but that doesn't make it a "weapon". I still stabbed you with a PENCIL.



--- End quote ---

+1 (beautiful analogy)  :lol

Level42:

--- Quote from: RayB on November 13, 2009, 01:24:03 am ---Hey --bags of cream-filled twinkies--, if he used a motor, then his terminology wasn't wrong. I can use a pencil to stab you in the eye, but that doesn't make it a "weapon". I still stabbed you with a PENCIL.



--- End quote ---
---smurf-poop---.  if you will go to court then in justice TERMS the pencil was the weapon that you committed the crime with.

The essence is this: Here we have a student who is doing an interesting project. He is trying to learn stuff and so it is important to get things right. If you would go to a electrical engineer and you talk about a motor that generates electricity, you will be laughed at. It's not a problem now, because he's a student and learns by mistakes. I tried to point him to that mistake in the hope he would accept it and learn from it, but instead he cries like a baby (not uncommon for today's youth).

He uses a motor to act as a generator. From the moment he uses the motor to transfer mechanical energy to electrical energy, it has become a generator.

I have a much better analogy for you guys: if he would apply electrical energy to the motor, he would have made a fan instead of a wind-turbine.

The point is that if you do a study project and you make a report or a presentation, and you will say that the electrical energy is produced by a motor it just sounds wrong.

The teacher should have at least pointed you to that.

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