electromagnet+strength

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Title
Electromagnet Strength

Problem Scenario
In my experiment i am going to see if the wire length has an effect on the strength of an electromagnet.

Broad Question
Can the strength of an electromagnet change?

Specific Quest ion
Does wire length effect electromagnet strength?

Hypothesis
I believe the longer the wire is the stronger the electromagnet will be.

Graph of Hypothesis


**Variables**

Vocabulary List That Needs Explanation
Electromagnet-magnetism developed by a current of electricity

General Plan
In my experiment i am planning on testing to see if the wire length effects the strength of an electromagnet. I will get different wire lengths and test each length on an electromagnet. I will see how many paper clips it will picks up with each different wire length.

Potential Problems And Solutions
Some problems that might happen during the experiment. First the battery might die, if it does i will get a new battery. Another problem is the wire might break, if that happens i will get new wire and re-build it. The last problem is the electromagnet doesn't work, if it doesn't work i will make a new one.

Safety Or Environmental Concerns
Some safety or environmental concerns. I could get electrocuted/shocked.

What is your experimental unit?
One electromagnet

Number Of Trials:
5

Number Of Subjects In Each trial:
1

Number of Observations:
1

When data will be collected
February 5th-15th

Where will data be collected?:
At home

Resources and Budget Table

 * Item || Number needed || Where I will get this || Cost ||
 * bolt || 1 || home ||  ||
 * battery || 1 || home ||  ||
 * wire || 300 cm || home ||  ||
 * tape || 1 role || home ||  ||
 * paper clips || 25 || home ||  ||
 * camera || 1 || home ||  ||

Detailed Procedure

 * 1) Get tape, bolt, wire 20 40 60 80 100 (cm), battery (9 volt) and paper clips (large)
 * 2) Rap the wire around the bolt, then tape it in place
 * 3) Leave 10cm of both ends of wire off bolt to connect the battery to
 * 4) Get the paper clips in a pile
 * 5) Attach the battery to each end of wire
 * 6) Test the magnet and see how many paper clips it picks up and record
 * 7) Take battery off and wire
 * 8) Re-build the electromagnet with a different wire length
 * 9) Test and record again
 * 10) Repeat the process until all wire lengths are tested

Photo List
I will take photos when i am doing the experiment.

Data Analysis All Raw Data
see graph above

Results
The shorter thye wire was the weaker the electromagnet was, and the longer the wire was the stronger it was.

Conclusion
The Electromagnet was stronger when it had more wire.

Discussion
In my experiment the longer the wire was the stronger the electromagnet was, the shorter it was the weaker it was. I was able to answer the experiment question and my hypothisis was correct. My prdiction graph was a few paper clips off. I had no problems doing my experiment and everything went fine. If i did the experiment again i would of tested each wire length more times. My experiment could help people if they were building an electromagnet, they would no what length wire to use for how much they are lifting up with it.

Benefit to Community and/or Science
My experiment would be beneficial to the community or science if someone needed to build an electromagnet and needed to know if they should use a longer or shorter wire. That is the only way it would help people in our community and science.

Background Research
My experiment was relatively easy with my current knowledge. I had to do some research on exactly how to build the electromagnet. But for the most part i knew how to build one. Building the electromagnet was easy and wasn't much work. I had to buy a few things like wire and paper clips. Recording the information was also very easy i just wrote down how many paper clips the electromagnet picked up and wrote it down on a chart. My prediction graph was pretty accurate, but was off by a few paper clips on some predictions. During the experiment i took pictures and used the wiki site to put down information. Building the electromagnet took about five minutes and the actual experiment took about 1/2 hour to complete. After the experiment i typed my information down on the wiki site.

Abstract
In my experiment i was seeing if the length of wire effects the strength of an electromagnet. My hypothesis states that the longer the wire is the stronger the electromagnet is. I tested 5 different lengths, 20 40 60 80 100 cm. My experiment was very easy and i didn't have any trouble. As i was doing my experiment i was putting my information on the wiki site.