Sunday, February 14, 2016

How are Motors build?

The wire will become magnetized when it receives energy, and when it does from the battery, the magnet will start pulling it down or up depending on the poles of attraction. The copper wire moves because it has a magnetic force once it is connected to the battery and would repel or attract to the magnet that will cause it to spin around.

In the other motor below, the magnet will still cause the copper wire to spin because it is receiving magnetism from the battery and the magnet is working against it.

Magnets are the Heart of Electricity

Wednesday, February 3, 2016

Generators

Generators are made with copper wire, magnet and something to make it work (bulb,fan,etc).
This is similar to a motor because it works when the electrons enter the item, giving it power to work, the copper wire just works as a flow for the electrons once they are inside, it only lights it up if it enters and hits it. It is used in the world around us to obtain energy we use daily, most of the energy we have today we get it from water,wind or sun, generators just make this elements energy.

Tuesday, January 26, 2016

Electromagnets

Pre-Activity
When we made the circuit with the battery and the compass the positive part of the magnetic needle was attracted by the positive pole of the battery and the other side of the needle was attracted by the negative side of the battery.  This happens because the battery contains electromagnetism, in other words, the electricity it uses attracts magnets by having a magnetic force. When  the battery is put close to the compass the force attracts.


Main Activity:
In this activity we tried to use a nail and a battery along with a wire as a magnet, we proved that the more you spin the wire around the nail while it is in a connected circuit, the more magnetic force will be passed to the nail. At first, we passed the wire 14 times around the nail and it wouldn't attract the paper clip, but when we started to pass it more and more times around it would start having more force, when we got the paper clip to attract completely to the nail the wire had been passed 36 times around. One factor that influences the force is the times you spin the wire around the nail, the more the greater force.