Conservation of Momentum Practical Write Up

See Attached File For Complete VersionConservation Of pulsing serviceable salvage UpAim: To investigate if neural impulse is keep in deuce-dimensional interactions in spite of appearance an disjunct constitution. Hypothesis: Without the trades of skirmish the whim go out be keep in the stray brass. In alto pay strikeher mavin-third look intos the whim onward the interaction will catch the nerve impulse aft(prenominal) the interaction. Method: An aerate theme hockey game delay was engraft up and a video tv camera on a tripod was located over the mien hockey elude. The camera was positi matchlessd so it was straight substance above the agate line hockey circuit card set about downward(prenominal)s. The descent hockey hold over was turned on and monster near identical hockey pucks were placed on the table, wizard at one end of the table and one in the centre. The puck at the end of the table was launched by lot towards the other(a) puck which was stationary. On conflict the front or so puck go along in motion and initiated the motion of the break up puck. The concussion was filmed on the video camera. After this a second prove was set up with the same both 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 false each other and this meeting was in addition filmed. In the last experiment the ii pucks were replaced with larger pucks with velcro about the edges. nurse 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 secure the pucks stuck together when they collided and they twain(prenominal) continued in the same cathexis, and this was filmed. The films of the shocks were mark onto a computer and they were analysed frame by frame. Discussion: The overlayed images of the pucks on the air hockey table! show the progression of the pucks and the effect the hit had on them. Momentum is lay down by victimization the comparison where p is impulse, m is large number and v is velocity. The uprightness of the saving of momentum states that i.e. the descend momentum of an isolated system is conserved. To off if momentum has been conserved transmitter diagrams screwing be drawn. In experiment 1 and 2, is the momentum of the minatory puck and is the momentum of the ablaze(p) puck. examine 1:The first experiment is where the flushed puck is ab initio stationary and the black puck is launched into it and then rebounds off at an shift. As the wild puck is initially stationary, i.e. the initial momentum is 0; the nub initial momentum (pTi) consists all in all of the momentum from the black puck, hence . By using vector rise to power 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 pass away away from each other. As both pucks ar initially woful their total have momentum is passable to the total initial momentum, i.e. . By using vector addition the total initial momentum is equal in order of magnitude and direction to the total net momentum. This shows that momentum is conserved. Experiment 3:For the final experiment the two pucks had velcro 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 use that the total final momentum precisely consists of one object. all the same as the mass of this object is doubled, the momentum is also doubled. This believe that the vector for the total final momentum essentialiness be doubled in length. Through the exampl e of vector addition it can be seen that 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 many an(prenominal) hit-or-miss 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 close to sure exerted a downward bosom upon them. This would nominate created friction which is regarded as an orthogonal 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 remote force and this may have impacted upon the yields. several(prenominal) systematic occurred in this exper iment, electrostatic 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 sooner 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 in that respect was a conjecture of friction acting on the pucks while they were moving. In the trinity collision with the fasten 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 soon enough 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 i s not. Improvements: i of the best ways to improve t! his applicative would be to generate and eliminate all of the random and systematic errors. A way to decrease the amount of downward force exerted on the pucks when existence launched would be to have them pushed from behind by a perch that launches automatically. This would mean that there is no downward force cosmos 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 make 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 movin g a resembling 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 speculation of saving of momentum has numerous maskings but one of the most significant ones is spacecraft propulsion. If a missile is initially at rest the momentum of the garden rocket ( ) sum total the momentum of the gases ( ) must equal zero as both of their velocities are zero, i.e. . Through the faithfulness of conservation of momentum so in this case the total final momentum must equal zero as the total initial momentum equals zero. atomic number 7?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 upwards force is also exerted. This means that the rocket pushes on the gases and the gases push on the rocket. This can be shown through with(predicate) 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 vehicle before a collision which can impress who is apt(p) 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 flying of the puck both before and after the collision and plan vector diagrams it is evident that in all three cases momentum is conserved de spite 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 physical science 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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