Physics - Motors and generators

Double physics today: fun, fun, fun!!!!

We've just started a new topic this week: motors and generators. For some peculiar reason learning about motors and generators makes me feel warm and fuzzy on the inside. Today was the real word application of current carrying wires and external magnetic fields. Since we were learning about torque force, we were given a demonstration on how a simple motor works.

The simple motor with three wire coils, 2 curved magnets and a tiny commutator was connected to the power box and whooo!!! It spun!!! Then we saw a motor that a science teacher had made, and it was absolutely fantastic. It consisted of a wire wrapped around a cork with nails in it attached to a pencil, permanent bar magnets, felt and copper strips, all taped on a board. Its simplicity was stunning. AND IT WORKED!!!! Okay, it did not manage to turned 360 degrees, but it made it to 90 degrees! So amazing...I want to make one someday.

As a bonus reward for being so attentive we were given Newton's cradle to play with. *tap tap tap tap tap* XD I could stare at that the whole day and not get bored. If I have one of those I'll never get anything done. So maybe it's a good thing I don't have one of those. Haha. Another toy that was demonstrated was the chicken toy. Four chickens on a board with their pivoting necks attached to strings that ended in a weight under the board, and when you swung the weight, the heads bobbed up and down, pecking at the board!!! Gaaaah I love the toys physics has.

Cheers!
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