Julianna+F

“Does Temperature Affect the Strength of a Magnet?” __Answers.com__. 6 Oct. 2009. [] “How are Magnets used in Everyday Life?” __Answers.com.__ 6 Oct. 2009. [] Kurtus, Ron. “About Magnets.” __Dowling Magnets__. 11 Oct. 2007. 6 Oct. 2009. [] “Magnet Field” 6 Oct. 2009. [] “Magnet Field.” __Wikipedia__. 6 Oct. 2009. [] “Magnetic Materials.” __School for Champions__. 6 Oct. 2009. [|http://www.school-for-champions.com/science/magnetic_materials.htm#] “Magnetism.” __Wikipedia__. 6 Oct. 2009. [] McGuingan, Bredan. “How Magnet Strength is Measured?” __wiseGEEK__. 6 Oct. 2009. [] “What about Gauss?” __Magnet Strength__. 6 Oct. 2009. [] “What Affects the Strength of a Magnet?” __Magnet Basics__. 6 Oct. 2009. [] Wilson, Tracy. “How Magnets Work.” __HowStuffWorks.__ 6 Oct. 2009. []

Magnet strength is extremely important to engineers and other mechanical jobs. An engineer needs to know when a magnet will work at its best. This experiment will help mechanics determine if magnets will work in the environment they need to use them in. Also it is important for everyday people to know how temperature affects magnets. For example in speakers and motors there are magnets. The experiment will help them decide what environment to keep these things and others in to keep the objects performing at their best. The effect of temperature on magnet strength has been tested over and over. There has always been the same result of heat making the magnet work less and colder temperatures making magnets works better. Some people tested the magnet strength by measuring the gauss of the magnets in different temperatures. Gauss is the cgs unit of magnet induction. But a gauss meter only measures lines of magnetic flux at a specific point on the magnet. This meter doesn’t provide an overall reading of the magnets strength. If a magnet is heated to its Curie Point then the magnet loses all its magnetism. For this experiment I won’t be using a lot of equipment. I will be using three different types of magnets. I need a thermometer as well to measure the temperatures of the water. Also I need three different beakers. One beaker I will put 200mL of water in. The second beaker I’m going to fill up to 200mL of water then use the Bunsen burner or put it over the stove to heat it up to boiling. The last beaker I will fill up with water to 200mL and put it in the fridge. Then I will get little weights and use tongs to pick up the magnets and see what the highest weight it can pick up is. The first thing I’m going to do is measure 200mL in a beaker. I’m going to test all three magnets in that water first and this will be my control. Then I’m going to put water in the fridge to cool it to about 40 degrees Fahrenheit. Once it reaches the right temperature then I will test all three magnets again doing 10 trials for each one. Lastly I’m going to heat water in the beaker up to 100 degrees Fahrenheit. Then test the magnets. I’m going to test the magnets by putting the magnet in the water for 10 minutes. After that I’m going to drop the different weights in the water and take tongs and see if the magnet will pick up the weights. My science fair project is going to work because people have tested the same thing before and proven that magnets don’t work well under extreme heat. Materials:
 * 3 magnets
 * 3 beakers
 * water
 * fridge
 * microwave/bunsen burner
 * thermometer
 * weights
 * tongs

Procedure: 1. Fill one beaker to 200mL of water 2. Take the temperature of the water, this will be the control 3. Put a magnet in water 4. Wait five minutes 5. Put a weight in the water and use the tongs to see if the magnet will pick up the weight 6. If the magnet successfully picks the weight up then put in a heavier magnet until the magnet can't pick up anymore weights 7. Repeat steps 3-6 with all the magnets making sure the temperature is the same for all of the magnets 8. Fill another beaker wit 200mL of water 9. Place it on the bunsen burner or in a microwave until the temperature is 100 degrees fahrenheit 10. Put the magnet in for five minutes 11. Put a weight in the water and use the tongs to see if the magnet will pick up the weight 12. If the magnet successfully picks the weight up then put in a heavier magnet until the magnet can't pick up anymore weights 13. Repeat steps 10-12 with all the magnets making sure the temperature is the same for all of the magnets 14. Fill another beaker wit 200mL of water 15. Place the beaker in the fridge until the temperature of the water is 35 degrees fahrenheit 16. Put the magnet in for five minutes 17. Put a weight in the water and use the tongs to see if the magnet will pick up the weight 18. If the magnet successfully picks the weight up then put in a heavier magnet until the magnet can't pick up anymore weights 19. Repeat steps 16-18 with all the magnets making sure the temperature is the same for all of the magnets