Magnets and Electromagnets Essay

Magnets and Electromagnets Essay

Length: 1030 words (2.9 double-spaced pages)

Rating: Strong Essays

Open Document

Essay Preview


Introduction
Magnets have existed for hundreds of thousands of years and have been used by many different cultures throughout this time. Magnets have been useful throughout the years because they can hold two things together just through the force of the metal in the magnet. With the world’s constantly changing technology, electromagnets have been evolved from magnets and are more useful than a regular magnet but in order for an electromagnet to work, an electric current needs to be present (http://saxonhomeschool.hmhco.com/ha/Resources/saxonhomeschool/Holt_ST_PhysSci_Samp.pdf). The following questions that need to be addressed when learning about magnets and electromagnets are:
1. What is a magnet?
2. What is the cause of magnetism?
2. What are the different kinds of magnets?
3. How are magnets beneficial?
4. What is an electromagnet?
5. How are electromagnets used today?

What is a magnet?
A magnet, defined in the Merriam-Webster dictionary, is classified as “a piece of iron (or an ore, alloy, or other material) that has its component atoms so ordered that the material exhibits properties of magnetism, such as attracting other iron-containing objects or aligning itself in an external magnetic field” (insert citation for google). This definition is saying that a magnet contains a magnetic field and it can attract other objects with like properties of that magnet so that they match up with one another creating a constant hold. Magnets were discovered over 2,000 years ago when the Greeks found a mineral that joined with like objects made of iron. This mineral was discovered in a city called Magnesia, so the Greeks named it magnetite (insert saxon citation).

What is the cause of magnetism?
“Some magnets can pic...


... middle of paper ...


...sources/HighSchool/Magnetism/magneticdomain.htm>.

9. "Magnets and Electromagnets." Hyper Physics. GSU, n.d. Web. 23 Sept. 2013. .

10. "Questions and Answers - What is an electromagnet?." Questions and Answers - What is an electromagnet?. N.p., n.d. Web. 12 Dec. 2013. .

11. Sandner, Lionel. What Is Electromagnetism? New York: Crabtree Pub., 2012. Print.

12. "Solenoids." Hyper Physics. GSU, n.d. Web. 23 Sept. 2013. .

13. Sumalla, Albert. Super-Charged Science Projects: Magnets and Electric Current. New York: Barron's, 1994. Print.

14. "Uses of Electromagnets." Universe Today RSS. N.p., n.d. Web. 12 Dec. 2013. .

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Investigating the Strength of Electromagnets Essay

- Investigating the Strength of Electromagnets Aim: To investigate into the effect that changing the number of turns on the coils has on the strength of an electromagnet. Background Information: If an electric current flows through a coil of wire a magnetic field is formed around the coil, creating an electromagnet. This is a temporary magnet, which can be switched off. There are three ways in which you can increase the strength of an electromagnet: Ÿ Increase the number of turns on the coil....   [tags: Papers]

Free Essays
955 words (2.7 pages)

Electromagnets Investigation Essay

- Electromagnets Investigation Planning. Electromagnets could be made stronger by varying some factors of the electromagnets. The different factors that affect the strength of electromagnets are the temperature, amount of current passed through the wire, the length of the core, the thickness of the wire used for the coils and the number of turns of the electromagnet. An electromagnet can be made by coiling up a length of wire around a piece of metal and passing an electric current through the wire, this creates a magnetic field through the coil, and hence an electromagnet is formed....   [tags: Papers]

Free Essays
2204 words (6.3 pages)

Essay about The Strength of an Electromagnet

- The Strength of an Electromagnet Introduction: [IMAGE]An electric current flowing through a wire produces a magnetic field. Coiling the wire produces a stronger magnetic field. Coiling it around a soft iron core increases the strength effect; raising the current or the number of coils increases it further. I am going to investigate the raising of the current and how it affects an electromagnet. I think the electromagnet will produce a stronger magnetic filed and pick up more iron fillings....   [tags: Papers]

Strong Essays
606 words (1.7 pages)

Essay about Factors that Affect the Strength of the Electromagnet

- Factors that Affect the Strength of the Electromagnet Aim: To investigate factors which affect the strength of the electromagnet and make the strongest electromagnet possible. Apparatus: · Iron Rod · Leads · Power Pack · Crocodile Clips · Insulated Wire · Iron Nails · Voltmeter · Plastic Beakers · Electronic Balance Hypothesis: I expect the strongest electromagnet to have a 'soft' iron core; the highest number of coils (45); the strongest voltage (10V) and current and have the coils evenly spread across the iron rod....   [tags: Papers]

Free Essays
1566 words (4.5 pages)

Essay about The Effect of the Number of Coils on an Electromagnet On Its Strength

- The Effect of the Number of Coils on an Electromagnet On Its Strength Aim: - To establish whether a variation in the number of coils will affect an electromagnet's strength. Scientific Knowledge: - The concept of electromagnets is fairly simple. An iron nail wrapped in a series of coils of insulated wire and then connected to a battery, will enable the nail to pick up paper clips. This is because the current emitted from the battery to the coils magnetises the nail. This is known as an electromagnet....   [tags: Papers]

Free Essays
925 words (2.6 pages)

Electromagnetism Studies the Relationship Between Electricy and Magnetism

- ... There are many types of magnets, there are, ceramic, alnico, neodymium, samarium, and of course, electromagnets (Wilson 2007). The most commonly used magnet. To make a magnet, you just encourage the domains to face the same way (Wilson 2007). To encourage the domains by placing it in a north south direction and strike it with a hammer. Striking it with a hammer make the domains lineup by jarring them sometimes in the same direction (Wilson 2007). If you place it magnetic field then it can also gain a magnetic field of itself....   [tags: scientists, metals, physics]

Strong Essays
845 words (2.4 pages)

The History of Magnets and Electromagents Essay

- The History of Magnets and Electromagents Magnets and electromagnets have many uses, every electric motor, generator or transformer requires a magnetic field for it's operation. With the exception of a few special types, all use electromagnets. The magnets mounted on large cranes are used to lift heavy loads. Magnetism makes the generator supplying the electricity to your home work and the radio, telephone and most other electrical gadgets work....   [tags: Papers]

Strong Essays
2050 words (5.9 pages)

Electromagnetic Induction Essay

- Michael Faraday was a chemist and physicist from England. He invented electromagnetic induction in 1831. Electromagnetic induction as defined by Stuart Bushong is: An electric current is induced in a circuit if some part of that circuit is in a changing magnetic field. This observation is summarized in what is called Faraday’s Law, or the first law of electromagnetics. After a series of different experiments, Faraday determined that an electrical current cannot exist just by the presence of a magnetic field....   [tags: Medical Technology ]

Strong Essays
1363 words (3.9 pages)

Essay about Electromagnetism Experiment

- Electromagnetism Experiment Introduction: ============= I start the introduction with a question: Will increasing current in an electromagnet increase the power of the electromagnet. The electromagnet we will be making is a very primitive one compared to that of the complexity of modern electromagnets found in machinery, but the way it works is almost identical. Electromagnetic technology is extremely complex and because it is an electromagnet, the higher the current, the stronger it becomes, and with this an electromagnet can become incomprehensively strong....   [tags: Papers]

Free Essays
1064 words (3 pages)

Electromagnet Investigation Essay

- Electromagnet Investigation An electromagnet works similarly to a normal magnet but with one huge advantage. A normal magnet is constantly on but an electromagnet can be turned on and off. This is useful in both the science lab and industry such as a scrap yard. An industrial investigation of this size is obviously not possible in the science lab so in order to simulate a smaller type of situation I'm going to use small weights. I plan to find out the different characteristics of an electromagnet by changing the number of coils around the electromagnet and the amount of current which is passed through it....   [tags: Papers]

Free Essays
440 words (1.3 pages)