Permeability of free space Essay Example

Permeability of free space Paper 1. Gather all necessary materials listed above  2. Using the electronic scale, measure the mass of the wooden block and record this, taking into account uncertainties where applicable.  3. Attach the string to the wooden block, and the other end to a mass-hook.  4. Place the sheet of sandpaper underneath the block and tape the sheet firmly in place on the table using sticky-tape (also note the exact position of the block on the sheet as we will try to keep that constant throughout). 5. Screw on the adjustable pulley at one edge of a laboratory table  6. Hang the mass hook off the table, using the mass pulley if this already causes the block to move, then place a small weight on top of the block. You set-up should look the following:  7. Carefully, while having your partner keeping an eye on the stationary block, add small increments of weight onto the hanging mass hook.  8. Once you have gone too far and the block has moved, remove the last weight and place the block back into its starting position. You will now have to add smaller increments of weight to determine more precisely how much force was needed. We will write a custom essay sample on Permeability of free space specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Permeability of free space specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Permeability of free space specifically for you FOR ONLY $16.38 $13.9/page Hire Writer 9. When you are satisfied with the amount of weight, remove it and measure everything that is on the hook (including the mass hook itself) using the electronic scale. Do not rely on the mass readings on the masses themselves, as time and wear has significantly decreased the mass shown.  Data Recording  10. Now you will record the two masses in a data table. First of all, record appropriately the mass of the block and any other weights that rest on top of the sander paper. Then record the electronic scale reading for the mass of the hook + weights hanging from the string. Using g = 10ms-1 you can now also figure out and record the weight. 11. Repeat the exact same procedure two more times to obtain 3 trials. Do not polish the sandpaper, nor obtain a new sheet as this can disrupt the experiment.  12. Now add about 100 grams of masses more onto the wooden block and repeat again, obtaining three more trials  13. Repeat step 12 as many times as possible.  Data Collection:  Note: The uncertainty in the normal reaction force R can be ignored, as when we weighed the block, we would have an uncertainty of 0.01 grams (as a result of the electronic scale displaying values), however when this is converted into Newtons, the uncertainty becomes 0.0001, which is so small, it can be ignored.  To find the average force of friction, I added up the 3 trial forces of friction and divided it by the number of trials (3). Sample calculation: When averaging the force of friction, I also had to take care of the uncertainties of each force of friction trial (0.05N) and I did this by estimating the uncertainty from the several repeated measurements. Since we are adding the three values, this means I had to add the 3 uncertainties. This gives the value of (0.05) + (0.05) + (0.05) =   0.15 N  To find the coefficient of friction à ¯Ã‚ ¿Ã‚ ½, the formula can be used, where is the frictional force, is the coefficient we are looking for, and R is the reaction force. Rearranging the formula, we obtain the formula for finding the coefficient directly; Note that this will give use the static coefficient of friction, which is different from the dynamic coefficient, but is what we were instructed to find in this particular lab. To find our average coefficient of static friction, taking into account all the tests and all the trials, we would have (0.76 + 0.77 + 0.77 + 0.78 + 0.79) / 5 =  = 0.77   0.05  On the following page you will find a graph that plots the frictional force Ffr versus the normal reaction force R. There is a clear linear relationship between the two forces, and this line should, ideally, pass through the origin. Uncertainties, and moreover, systematic error, have caused this line shift. For example, the friction of between the puller and the string meant that not all of the weight of the mass was transferred to pull the block, but since this happened every time, the relationship still holds although it is not from the origin. Moreover, as we continued carrying out this experiment, one must keep in mind that the sandpaper was getting more and more worn, which reduces friction for the consequential trials.

Sample Synthesis Argument Essay For Highschool Students

Sample Synthesis Argument Essay For Highschool StudentsA sample synthesis argument essay for high school students is a great way to get the point across quickly and easily, while still allowing them to have a chance to learn about the theory and the process of synthesis. The paper in this topic is designed to be an overview of the subject, and gives the reader a basic outline of the three main steps of synthesis, and how they relate to each other.Synthesis involves the separation of a product (either a chemical or a physical substance) from its building blocks, and that's where there are three different kinds of synthesis: hydrosynthesis, amylogenesis, and elution. Each of these will be covered in their own separate sections of the argument essay, with brief explanations of the synthesis involved in each, and how it relates to the products of the other two types of synthesis. This is a great way to give your students an easy introduction to the various different stages of synthesis, without having to get into a big philosophical discussion about the ethics of the process.Amylogenesis is the process of breaking down a molecule into two components and separating them. Hydrosynthesis is a much simpler process and involves combining two compounds together, instead of separating them. Although myogenesis has become less popular over the years, hydrosynthesis is still a widely used process for the separation of molecules, but it is mainly used in the chemical industry and in the manufacture of chemicals.Amylogenesis is not a natural process, however. It requires some very specific conditions, and that is one of the reasons why hydrosynthesis is the most popular process. The process of hydrosynthesis involves combining alkanes (methane and propane) and then heating them up so that the molecular bonding between the carbon and hydrogen is broken. Once this happens, you are left with methane and propane gas, which can be used for both electricity and for fuel.But you can also make these things yourself! You just need the right equipment, and a little knowledge about how to do it. Other than this, all you really need to know about the process is what's stated in the syntheses that were given in the example essay. The paper doesn't go into a lot of detail about the actual process of amylogenesis, but it does talk about the types of things that you will need to make these materials.Elution is one of the different kinds of amylogenesis, and it involves making hydrogen from ammonia and other kinds of chemicals. If you need to make gas from scratch, this is probably the easiest method to get started with. However, if you want to use an already existing product as a gas, you may want to look at amylogenesis first, since this is the most common method used to make products such as methane and propane gas.A sample synthesis argument essay for high school students is one of the best ways to introduce the different processes used in amylogenesis and hydrosynt hesis, as well as a little bit about how the combinations that you can use to create different products can be created. Some of the chemical elements that are being introduced are: ammonia, sulfur, and methane. From these you can make with the ingredients that are being used in these products, such as fertilizers, solvents, lubricants, and the like.The main purpose of a good synthesis essay is to get students interested in understanding the different processes that are involved in the manufacturing of certain products. It can also help students remember the processes of hydrosynthesis and amylogenesis for the sake of future reference. All in all, a good synthesis essay is a great way to introduce these processes to students.