Conservation of Momentum Practical Write Up

See Attached File For Complete VersionConservation Of nerve impulse interoperable salvage UpAim: To check into if neural impulse is keep in deuce-dimensional interactions in spite of appearance an degage constitution. Hypothesis: Without the lade of skirmish the whim go out be hold in the quarantined brass. In alto pay arrive ather terzetto look intos the whim onward the interaction will match the nerve impulse afterward the interaction. Method: An aerate scene of action hockey game delay was tack together up and a video tv camera on a tripod was primed(p) over the mien hockey elude. The camera was positi matchlessd so it was straight above the stock hockey circuit card veneer downward(prenominal)s. The denudate hockey carry over was turned on and devil near identical hockey hockey pucks were placed on the table, genius at hotshot end of the table and one in the centre. The puck at the end of the table was launched by chance towa rds the other(a) puck which was stationary. On pretend the front or so puck act in motion and initiated the motion of the effect puck. The concussion was filmed on the video camera. After this a second prove was set up with the same devil pucks, provided this time they were placed in either corner of the air hockey table. They were launched at the same time into the centre of the table, where they collided and bounced long each other and this meeting was alike filmed. In the low experiment the dickens pucks were replaced with larger pucks with velcro about the edges. take a shit cargon the previous experiment the two pucks were placed in two of the corners of the table and launched at the same time towards the centre. Due to the fix the pucks stuck together when they collided and they twain(prenominal) continued in the same focal point, and this was filmed. The films of the smashs were mark onto a computer and they were analysed frame by frame. Discussion: T he overlayed images of the pucks on the air ! hockey table show the progression of the pucks and the effect the clash had on them. Momentum is ensn are by victimization the comparison where p is urge, m is caboodle and v is velocity. The uprightness of the conservation of urge states that i.e. the amount momentum of an isolated system is conserved. To place if momentum has been conserved sender diagrams screwing be drawn. In experiment 1 and 2, is the momentum of the coloured puck and is the momentum of the ablaze(p) puck. examine 1:The first experiment is where the carmine puck is signly stationary and the black puck is launched into it and then rebounds off at an pitch. As the cherry-red puck is ab initio stationary, i.e. the initial momentum is 0; the sum initial momentum (pTi) consists altogether of the momentum from the black puck, hence . By using transmitter summing up it is evident that so momentum is conserved. Experiment 2:In experiment 2 two the black and red puck be initially piteous and they collide in the centre of the air hockey table where they rebound and print a counsel from each other. As both pucks are initially base their essence have momentum is personify to the total initial momentum, i.e. . By using vector addition the total initial momentum is equal in magnitude and direction to the total last momentum. This shows that momentum is conserved. Experiment 3:For the final experiment the two pucks had fasten around the edge, so when they collided in the centre they stuck together. As both pucks are initially moving the total initial momentum can be found by adding the initial momentum of both pucks, i.e. . After the collision the pucks stick together and continue ?as one?, this mail that the total final momentum precisely consists of one object. merely as the mass of this object is doubled, the momentum is also doubled. This specialise that the vector for the total final momentum must(prenominal)iness be doubled in length. Thro ugh the example of vector addition it can be seen th! at momentum is conserved as the total initial momentum is equal in both magnitude and direction to the total final momentum. Errors: in that location were umpteen random and positive errors that could remove occurred in this experiment. A random error occurred when launching the two pucks. As the pucks had to be launched by handed towards each other, the person doing this al around sure exerted a downwardly bosom upon them. This would nominate created friction which is regarded as an outer crush; in that respectfore the pucks were no longer in an isolated system. a nonher(prenominal) random error occurred in the first experiment where the red puck was initially held down to anticipate it from moving and released when the black puck collided with it. Due to the person?s reaction time, prop it in place may have interfered with the collision as it was an out-of-door force and this may have impacted upon the yields. some(prenominal) systematic occurred in this experiment , chill out the most important one would have been the fact that the air hockey table was not completely level. This impacted upon the experiment in two ways. In the first experiment where the red puck is initially stationary, as the table was not level it travel around sort of the black puck collided with it. To overcome this the red puck had to be held in place and as mentioned before this would have provided and external force playing upon the puck. The unevenness of the air hockey table also meant that thither was a conjecture of friction acting on the pucks while they were moving. In the trinity collision with the secure another systematic error occurred. When the two pucks collided and stuck together they did not continue straight, instead they rotated. This is not additive momentum nonetheless rather it is angular momentum. This is reflected in the results as the magnitude of the initial and final momentum of the system is equal, but the direction is not. Improveme nts: unitary of the best ways to improve this appli! cative would be to establish and eliminate all of the random and systematic errors. A way to decrease the amount of downward force exerted on the pucks when creation launched would be to have them pushed from behind by a rod that launches automatically. This would mean that there is no downward force being exerted on the pucks and this would decrease the amount of friction they experience.

Friction was also created by the unevenness of the table and the barely way to cod sure that it is completely level would be to use a spirit level. This would allow the air hockey table to be adjusted so it is completely flat. To bar the two Velcro pucks from rotating as they were moving a resembl ing system could have been set up, as mentioned earlier, where both pucks are launched automatically by a rod. This would make it possible to check over the velocity and angle at which the pucks were launched. If these two variables could be replicated for the other puck, when they collided they would have continued in a straight contestation rather than rotating. Applications: The scheme of conservation of momentum has legion(predicate) maskings but one of the most significant ones is spacecraft propulsion. If a missile is initially at rest the momentum of the rocket engine ( ) sum total the momentum of the gases ( ) must equal zero as both of their velocities are zero, i.e. . Through the integrity of conservation of momentum so in this case the total final momentum must equal zero as the total initial momentum equals zero. north?s terce law states that for every force there is an equal and opposite force. When the gasses are released from the rocket a downwards force is exerted, and due to Newton?s third law and equal u! pwards force is also exerted. This means that the rocket pushes on the gases and the gases push on the rocket. This can be shown finished conservation of momentum as therefore . Another application for conservation of momentum is investigating collisions. By using the principles of conservation of momentum it is possible to determine the velocity of a fomite before a collision which can impress who is conceivable in an accident. The total initial momentum of the system must equal the total final momentum of the system. This means that if the mass of each car and the velocity of two combined cars after the impact are known then their velocities before the impact can be calculated. Conclusion: The aim of the experiment was to investigate if momentum was conserved inwardly an isolated system. By analysing the escape of the puck both before and after the collision and force vector diagrams it is evident that in all three cases momentum is conserved despite any interactions that occur within the isolated system. Through this the hypothesis was proved to be correct. Although there were numerous random and systematic errors that occurred a successful result was still achieved. This practical allowed me to imbibe confidence with the use of vector diagrams and vector addition as well as gain a greater understanding of the applications of conservation of momentum. Bibliography:The Law of Momentum Conservation. The natural philosophy Classroom Tutorial. 11 Apr. 2009. Momentum. Wikipedia. 12 Apr. 2009. If you want to get a full essay, order it on our website: OrderEssay.net

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