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"Making an Electromagnet"

Extracts from this document...

Introduction

Project in Physics Technical Paper "Making an Electromagnet" Submitted by: Group 10 Audrey Mae Selda Ednard La Rosa Easter Cindy Mutia Ken Bjanli Te Year 4- Diamond Submitted to: Ms. Shella Mae Cascaro Physics Teacher Date of Submission: December 14, 2005 Wednesday A. Statement of the Problem/ Objectives: The following are some objectives or what the proponents would like to carry out in the progress of this project: To be able to make an electromagnet in the simplest way. To be able to relate the number of turns of wire with the strength of the electromagnet To be able to attract as many paper clips as possible. To be able to explain and recognize the principles and concepts behind electromagnetism. B. Materials and Methods: I. Materials: These are some of the materials used by the proponents in making the electromagnet: One iron nail Stranded copper wire One or more D-cell batteries Scissors Paper clips II. Methods: These are what the proponents did in making the electromagnet: The proponents first gathered all the materials needed for the making of the electromagnet. ...read more.

Middle

When there is electric current, a magnetic filed is created. .In the activity, some of the copper wire needs to be exposed so that the battery can make a good electrical connection, and the rest of the wire was wrapped around the nail. The more wire wrapped around the nail, the stronger the electromagnet will be. The wire should also be wrapped in one direction only. The direction of a magnet field depends on the direction of the electric current creating it. The movement of electric charges creates a magnetic field. If some of the wire was wrapped around the nail in one direction and some of the wire in the other direction, the magnetic fields from the different sections fight each other and cancel out, reducing the strength of the electromagnet. When the ends of the wire were connected to the battery, the electrons behave very differently. They all move in the same direction along the wire, toward the positive terminal of the battery. The exposed ends of the wire were attached to the positive and negative terminals of the battery. ...read more.

Conclusion

This was done in order to make more coiled wire attached in the nail. Then, with this kind of structure, the group was able to conclude that the electromagnetic nail is a success since it was able to attract the desired number of staple wires. G. Recommendations: After inventing the electromagnet, the proponents would like to recommend a few practices for better project making in the future. The group found this activity fun and worthwhile doing because a lot of scientific concepts were applied and it was amazing to see how the group's invention actually worked. The group highly recommends this kind of project for it is such a learning experience. The group suggests that the more turns of wire your magnet has, the better and that the further the wire is from the core, the less effective it will be. The more current that passes through the wire, the better as well. But too much current can be dangerous, though. As electricity passes through a wire, some energy is lost as heat. The more current that flows through a wire, the more heat is generated. Things can quickly become too hot to handle. The proponents recommend others to try experimenting with different cores. A thicker core might make a more powerful magnet. ...read more.

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Here's what a star student thought of this essay

3 star(s)

Response to the question

A group piece of coursework. Response to the aim was done quite well but as they achieved all their aims through the experiment, but I'm not sure they recognised all the principles behind electromagnetism so should look at this more ...

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Response to the question

A group piece of coursework. Response to the aim was done quite well but as they achieved all their aims through the experiment, but I'm not sure they recognised all the principles behind electromagnetism so should look at this more thoroughly in their own time as some of their explanations were not explained very well in relation to the scientific evidence.

Level of analysis

The group includes pictures of the different materials so the reader can gain an idea of what the magnets may be like. The method is clear to read but to make it easier to read and follow it should have been presented in bullet point form with clearer instructions on how to strip and connect the wire. It would have been helpful to include a diagram of stages here. The science behind the electromagnet is explained well. The different experiments used seemed a bit random and the results were not well documented. The theory behind each change was only slightly explained and should be explained a bit more thoroughly such as to include exactly why they gained the decision for each change. For example, why did they use thinner and longer copper wire, what was the reasoning behind it. The conclusion is adequate and improvements are suggested but again the reasoning behind it is not very well explained.

Quality of writing

Presented well in different clear subheadings. Grammar, spelling and punctuation are all to a good level.


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Reviewed by skatealexia 26/07/2012

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