Aim To investigate what affects temperature has on the strength of a magnet. Hypothesis: My hypothesis is that as the temperature of the magnet increases the strength of the magnet will decrease. This is because of the atomic structure of the elements that make up the alloy. All atoms have a nucleus, which orbited by spinning electrons and as the magnet increases in temperature the distance between the nucleus and the electrons increase therefore decreasing the strength of the magnet.(1) Equipment: Magnet Hot Plate Tongs Water Paperclips Heatproof container Scales Thermometer Infrared camera Safety glasses Apron Measurement cup Method: Fill a heatproof container with water and use the hotplate to heat the water with safety …show more content…
The greatest health risk this practical contained was heat. I was operating with high temperatures that came from the hot plate that heated the water up and eventually the magnet as well. I decided to use rubber gloves to transfer the containers of water from the hot plate to the table or vice versa. The use of a glass container and rubber gloves work as they do not conduct heat very well which means I can safely maneuver the hot objects around without having to worry about getting burnt. However, the rubber gloves could not be used to lift the magnet and place it on the stack of paper clips as the magnet was to small to lift so in order to do this I required tongs. The tongs enabled me to lift the magnet and place it against the paperclips also without getting burnt. The highest temperature magnet I worked with was 58 degrees Celsius so I took precautions in removing the paperclips as it was possible they gained enough heat which had the potential to affect harm to me as the paperclips were metal and it is well known that metal is a good conductor of heat. Results The raw data shows what I expected that as the temperature of the magnet increases the strength decreases. Now graphing the Average Temperature against the Average Mass I yield the following …show more content…
We know from the laws of heat that heat transfers from hot to cold and this effected my results accuracy. As I placed the magnet in the water of different temperature I then waited for the magnet to heat up which I would then use the infrared camera to calculate the temperature of the magnet, but, I could not allow for the temperature lost between recording the temperature of the magnet and then lifting the magnet and placing it over the paperclips. This means that the recorded temperature of the magnet is not completely accurate as it does not allow for this loss. Not being able to get the exact heat desired Random Due to restrictions it was difficult to get the temperature of the magnet to the same temperature three times. Although I got very close the temperatures were not exact and therefore play a factor in my results accuracy. It was also recognized that the higher temperature I required for the magnet the harder it was to get it similar for the three different attempts. I believe this is because the heat of the magnet transfers to the room quicker when the temperature of the magnet is
Experimental Summary: First, my partner and I put the marshmallow and cheese puff on T-pins and used the Electronic Balance to measure the mass of each of them. Next, we put 100 mL of water in the 100 mL Graduated Cylinder and poured it into the 12 oz. soda can. We measured the temperature of the water with the thermometer. After
First, 100 mL of regular deionized water was measured using a 100 mL graduated cylinder. This water was then poured into the styrofoam cup that will be used to gather the hot water later. The water level was then marked using a pen on the inside of the cup. The water was then dumped out, and the cup was dried. Next, 100 mL of regular deionized water was measured using a 100 mL graduated cylinder, and the fish tank thermometer was placed in the water. Once the temperature was stabilizing in the graduated cylinder, the marked styrofoam cup was filled to the mark with hot water. Quickly, the temperature of the regular water was recorded immediately before it was poured into the styrofoam cup. The regular/hot water was mixed for a couple seconds, and the fish tank thermometer was then submerged into the water. After approximately 30 seconds, the temperature of the mixture leveled out, and was recorded. This was repeated three
Then, repeat steps 7-11 another 4 times but with the room temperature water. For the room temperature water just leave it in the room but try not to change the room’s temperature. 15. Try to put all your recorded data into a table for organization 16. Repeat the entire experiment for more reliable data.
The metal cylinder was removed from the boiling water and placed in the Styrofoam cup using tongs.
9. Repeat step #8. Using a pipet, add small amounts of boiling water from the hot plate to the water bath and collect pressure and temperature data. For each new temperature, record the air pressure and vapor pressure. Continue until you have gathered 6 measurements that range from room temperature to 40 °C.
Over the observed fifty seconds, there was a consistency among the temperatures. Without a calculated percent error, we are able to assume the average temperature was twenty-six degrees Celsius. There are factors that could have caused error to arise in our data collection. One factor could be that the temperature of the room was not consistent throughout the room. Another factor may have been the performance of the thermometer. The grasp in which the thermometer was held for procedure B may also be a factor.
The thermometer, containers, and iron ball were secured of any possible contaminants. The stopwatch was calibrated and checked to be correctly measuring the time in seconds and milliseconds, by comparison with other stopwatches. The thermometer was checked to be accurately measuring the temperature of lukewarm water, and was al...
Since all metals have different densities and makeups I think that the heat capacity will greatly vary. The makeup of iron is very different than aluminum so the heat capacity will be quite different. Also, a lot of metals are not completely pure and that will also have some effect on the heat capacity.
In a Styrofoam cup, record the temperature of the 200 ml of cold water. This is 200 g of water, as the density of water is 1 g/ml.
The objective of this experiment was to identify a metal based on its specific heat using calorimetry. The unknown metals specific heat was measured in two different settings, room temperature water and cold water. Using two different temperatures of water would prove that the specific heat remained constant. The heated metal was placed into the two different water temperatures during two separate trials, and then the measurements were recorded. Through the measurements taken and plugged into the equation, two specific heats were found. Taking the two specific heats and averaging them, it was then that
being picked up by the nail. The strength of an electromagnet can also be altered by varying the current or voltage. The more induced voltage, the stronger the electromagnet. An alternative way to strengthen an electromagnet is to replace the core with a "soft" iron. core. The.. Prediction: -.
Magnets are stones that produce magnetic fields. The magnetic field is invisible, but is responsible for the most noticeable aspect of a magnet: the attraction of a metal object or the repulsion of another magnet. Magnets are used in common everyday household items: credit cards, TVs, speakers, motors, and compasses. A magnets strength is measured by its magnetic moment. (“Magnetism”)
Temperature has a large effect on particles. Heat makes particles energized causing them to spread out and bounce around. Inversely the cold causes particles to clump together and become denser. These changes greatly F magnetic the state of substances and can also influence the strength of magnetic fields. This is because it can alter the flow of electrons through the magnet.
A magnet has an invisible field that forces other objects to respond to its properties. This powerful force, which is referred to as the magnetic field, has particles called electrons that actively shift and move within the field. These electrons constantly revolve around the poles, thereby creating energy that attracts objects. Because of this, a magnet has the ability to draw objects towards itself. This ability, which is called magnetism, is caused by the force field that magnets create through its protons (positive charge) and electrons (negative charge).