Trip to Museum Listrik (Electricity Museum)

At Museum Listrik (Electricity Museum), I found many interesting objects and things, such as:

Versatile Burner

The oldest first Indonesian made generator power station

And many other interesting things, such as Hydroelectric power station. From the knowledge i gain here, now i know the history of the electricity power and now i know how to conserve energy in my daily life, now i also know what to do if someday we ran out of energy and fossil fuels. 

Trip to IPTEK (Science Center)

On my field trip, i went to IPTEK (Ilmu Pengetahuan dan Teknologi) or Science Center. There, I did and experimented with many things including fires, air pressure, electromagnet, simple battery, and other things there.

There I learned many things. I learned that substances in sugar can be burned if flamed, soap cannot be burned, and simple things lie coins, aluminum foil, filtering sheet, and vinegar can produce electricity.

Learning these things are important to gain our knowledge and also apply it to our daily lives.

Here are the steps to make a simple battery i learned from IPTEK:
1. Put a coin.

2. Put a dipped filtering sheet on top of the coin.

3. Put a small-cutted aluminum foil on top of the stack.

4. Repeat this activity and then measure the strength of the electricity produce (volt) with an avometer.

Electromagnet in our daily life

   Not only in experiments, we can find electromagnetic use in our daily life such as the Refrigerator's door, compasses, the big magnet in the junkyards to move and destroy cars, in industries,  and also x-rays for medical use.

 

How to make an Electromagnet?

  

      To make an Electromagnet, you will need one or more Batteries, a long copper wire, a thing that has magnetic power that made out of iron or steel such as a nail (approximately 15-20 cm long), small things that has magnetic effect such as paper clips or staples filling and a battery house (compoulsary)
      After you have all the things to make an Electromagnet, now you can make it.
1. First you will have to peel the coating of the copper wire so the wire is exposed and can be use to connect the electric flow from the battery. But don't peel all of the coating, peel just for about 1-2 inches.

  
 2. Wrap the wire around the iron/steel for 5 or 10 turns, its up to you. You have to wrap the wire in same direction.

 3. Then, connect the exposed copper wire to both ends of the battery (Battery house if you have one) to produce a magnetic effect cause by the electric flow from the battery that has been connect through the exposed copper wire.

 4.Now, the Electromagnet is done. To test the Electromagnet power produced from this experiment, try to make the paperclips or staples filling attached to the iron/steel nail. Then do this experiment all over again but with different or more batteries or different number of turns of the wire.

TIPS AND WARNING:

• Put tape around your fingers so you will not get electric shock.
• Be careful in peeling the coating of the copper wire.
• To make stronger power of the electromagnet, use 2 D-size batteries. 

What is Electromagnet?

             Electromagnet is the power of magnet attraction that's powered by electricity flow. Electromagnet its not like the usual magnet such as permanent magnet, because the power of the magnet of the electromagnet is depending on how many turns of the coil of wire and the number of batteries/electricity power used to make the electromagnet works. Types of battery/electricity power used also affect the strength of the Electromagnet power.