Monday, February 1, 2016


Copper is not magnetic and we use it because we can start it and stop it by applying a electric current if we were to use a iron we could use it and have no need to create a magnetic field around it because it is already magnetic but once we start it we could never stop. The motors we made are built using a battery a neo demian magnet and a copper wire, the motor work because when you put together the circuit the copper wire gets magnetised and if you have it just right a perfect balance between touching the magnet and not getting a lot of friction the motor will start going because the magnet is pushing the copper wire forward every time it has the chance to this makes it spin.


Pre activity:
During the pre activity i noticed that once I had a complete circuit and I waved the cable on top of the compass the compass started pointing with the cable I thought this was weird and I wanted to see if the battery worked as well so I tried it and it worked.
I think this is because the battery acts like a magnet because it has a north + and a south -
and when you connect the wire the battery passes all of the magnetic properties to the wire.

Main Activity: 
During the main activity I learned a big thing about magnets it is that they are reactive to to electricity so it is not that the battery is a magnet is that the magnet is responsive to electricity. When you make a circuit the wire gets a magnetic field and that can  magnetise the nail. When I wrapped the nail 10 times it did not pick up a single paper clip and the same for 15 wraps and 20 wraps until I finally got it to pick up a paper clip after wrapping it 30 times.

Rube Goldberg Machine (If the Videos don't work open them in youtube)