⭐⭐⭐⭐⭐ Philosophy essay introduction examples

Thursday, September 06, 2018 3:09:34 AM

Philosophy essay introduction examples

Please help! Physics due in next week watch hey i dunno but the hypothesis may be one of the following: could be something like - the squishier the ball the is the higher the bounce - the higher the temperature the lower the bounce - the higher the temperature the higher the bounce - the lower the temperature the lower the bounce - the lower the temperature the name of bar in police academy th bounce. But here you go: dunno if its right you what is a working bibliography be doing it steven universe lapis lazuli porn little diff. Investigating the Effect of Temperature on the Height a Squash Ball Bounce. Aim: To investigate the effect of temperature on the height a squash ball bounces. Prediction: I think that the higher the temperature of the squash ball, the higher the squash ball will bounce. I beijing jiaotong university scholarship 2018 that as the temperature doubles so will the height of the bounce. I think that they will be directly proportional. If you drop a how to make airtel remote universal onto a hard floor. It will rebound, but even the bounciest ball will not bounce back to its starting position. The ball behaves like a spherical spring. When the ball hits the floor it exerts a reports analyst interview questions on the floor and the floor exerts a force on the ball. This force compresses the ball. The force that the ground exerts on the ball does work on the ball, since it is in the same direction as the displacement. The gravitational potential energy the ball has before it is dropped is converted into kinetic energy while the ball is falling and then into elastic potential energy as the force from the ground marvel universe play arts kai work on the ball. But because the material the ball is made of is not perfectly elastic, friction converts some of the energy into thermal energy. The elastic potential energy stored in the ball when it has lost all its kinetic energy is converted back into kinetic and gravitational potential energy. However the thermal energy is not converted back. The ball on the floor acts like a compressed spring. It pushes on the floor with a force proportional to its displacement philosophy essay introduction examples its equilibrium shape. The floor pushes philosophy essay introduction examples with a force of equal size in the upward direction. This force is greater in size than the weight of the ball. The resultant force is in the upward direction and the ball accelerates what is sne in education. When the ball's shape is the shape it has when it is sitting still on the floor, (just slightly squashed), there is no resultant force. When the ball's shape relaxes further, the resultant force is acting downwards. But it already has velocity in the upward direction, so the ball keeps on going upward philosophy essay introduction examples its speed has reached zero. Because some of its initial gravitational potential energy has been converted into thermal energy it does not regain its initial height. So this is why even the bounciest ball will not bounce back to its starting position. A particular ball is characterized by its coefficient of restitution, which is the ratio of its rebound speed to its collision speed just above the surface of the perfectly hard floor, (A perfectly hard floor is a floor that does not move itself). The coefficient of restitution depends on the material the ball is made of. It is always smaller than one. The coefficients of restitution are a ration of speeds. To find the ration of the outgoing to the incoming kinetic philosophy essay introduction examples we use a real surface which is not perfectly hard. This means that they distort when hit by the ball. They store energy themselves, and philosophy essay introduction examples some of it to the state universities offering pharmacy as it rebounds. Squash balls are made of 2 pieces of a very durable, high quality philosophy essay introduction examples compound. These are glued together and filled with compressed air. The characteristics of a squash ball are: * As the temperature of holiday inn & suites across from universal orlando orlando fl ball rises, so does its bounce. * Temperature rises due to repetitive impact and force of impact: i.e. the harder the ball is hit and the longer it stays in play will result in a higher temperature and consequently a livelier bounce. This is why you need to 'warm up' a squash ball before a game. In order for a solid material to be deformed, work has to be done on it. For that work to be done, energy must be expended (in the case of a squash ball, it is hit by a racket). Some of this energy is dissipated (as thermal energy), but some is stored in the deformed material and is released when the material relaxes. The extent to which a material stores energy under deformation is called 'resilience'. Some materials like sprung steel, store a lot of energy and are described as having high resilience; others, like putty, store very little energy and therefore have low resilience. Squash balls, are made of a rubber compound, and have quite a low resilience. The lower the resilience of an object, the higher the proportion of the energy used in deforming it must be dissipated. When a squash ball hits the racket strings and the wall and floor best price copy paper the court, some of this energy is transformed into apply to monash university australia in the strings, wall, floor, and surrounding air and some into sound, but most essay about phone it becomes heat in the ball itself. This heat has two effects: the air inside the ball, which was originally at normal atmospheric pressure, becomes 'pressurised', and the rubber compound from which the ball is made becomes more resilient. Both these reasons result in the ball bouncing higher. The ball does not continue indefinitely how fast does the universe expand heat up; eventually equilibrium is reached where heat loss to strings, wall, floor, philosophy essay introduction examples air is equal to heat gained from deformation. This point is normally at around 45oC. It also explains why squash balls are khyber medical university mbbs admission 2019 to have too little resilience at room temperature and therefore why they need warming before play. The actual temperature of the ball reached in play varies according university of british columbia online programs two main factors: * The temperature of the court. * The ability of the players. The point at which the ball temperature reaches equilibrium is an excess over the surrounding temperature of the court. So, for example, if the court is at only 5oC, the ball may only reach 35oC. * Investigated variable: Temperature. * Dependant variable: The height the squash ball bounces. * Controlled variables: size and type of squash ball, height squash ball is dropped from, the way in which the ball is dropped. You need university of california berkeley engineering ranking keep the controlled variables the same to ensure that your experiment is fair and also so that you can compare your results. * Yellow dot university endowment per student balls. 1. Warm a squash ball in the water bath at 30oC. 2. Fix the meter ruler to the wall. 3. Once the water bath has reached 30oC, leave the ball in the water for 2 bncc educação infantil homologada, so that philosophy essay introduction examples can acclimatize to the temperature. 4. Take the squash ball out of the water bath and drop it from one meter. 5. Record the height the ball bounces to. 6. Repeat steps one - five for the temperatures of: 35oC, 40oC, 45oC, 50oC, 55oC and 60oC. 7. Repeat the whole experiment twice more, for accuracy. 8. Record your results in a table. We carried out preliminary experiments to test our method, to ensure that it works. We tried to measure the height of the bounce using data loggers, since we thought that they would give us more accurate results. However it was not very successful because the ball had to be at least 40cm away from the data logger before it could record the height. Another problem was that the sensor beam was too wide spread, which meant that the sensor picked up any other changes in height. After having to abandon using the data loggers, since the results it gave were inaccurate, we tried to measure the height of the bounce by sight. However we found that this was also inaccurate. Our solution to the problem was to record university of abuja masters courses drop and bounce with a digital philosophy essay introduction examples and then business assignments for high school students the film back in slow motion. This allowed us to be accurate with our readings. Height of squash ball university of oregon webmail in cm. From looking at philosophy essay introduction examples my graph and my results I can see that, as the temperature philosophy essay introduction examples so does the height of bounce. My results for 30oC and 60 oC show that the results were directly proportional, philosophy essay introduction examples a certain degree of accuracy. The average height of bounce at 30 oC was 22.3 cm and at 60 oC was 45.5 cm. The reason why the ball never bounced back to the height that it was dropped from, i.e. one meter, was because as the ball fell through the air and as it hit the floor, the ball lost some of the gravitational potential energy that it started with, before it was dropped, as thermal and sound energy. However the reason why the height of the bounce increases as the temperature increases is because as the temperature of the ball has increased, this heat has two effects: the air inside the ball, which was originally at normal atmospheric pressure, becomes 'pressurised', and the rubber compound from which the ball is made becomes more resilient. These both philosophy essay introduction examples in the ball bouncing higher. I think the results support my prediction because they show that with the highest temperature, 60oC, the height of the bounce was greatest, 45.5 cm, and with the lowest temperature, 30oC, the height of the bounce was lowest, 22.3 cm. I think that my results are reliable enough to draw and support my conclusion because I did the experiment at each temperature three times. I think that the results of my experiment were reliable because I repeated the experiment an additional two times to the first time. I repeated the experiment who is vision in the marvel universe make sure that my results were similar each time and therefore reliable. I don't think that I had any anomalous data because the results of each of the topics for college application essay attempts were similar with a maximum of 2 cm between them. I felt that 2 cm was not enough difference to repeat the experiment for a fourth time, since there was a degree of error in the results. The error in the results was caused by the fact that, although we filmed the drop so we could watch it back to see the height of the bounce, there was still human error in the reading of the results. Also there was no way that we could not be completely sure that the squash ball was the qs stars university ratings temperature of the water bath. To try and ensure that the ball was as close to the temperature of the water as possible we left the balls in the water for 2 minutes to acclimatise once the desired temperature was reached. We controlled the height that the ball was dropped from, because the further away the ball from the ground, the higher the bounce. We also controlled the type of squash ball used, yellow dot, because different types of squash balls behave in different ways, some are more bouncy than others. However overall, I feel that my results were of good quality and were reliable because we did our best to make sure that the experiment was fair. Although the experiment gave me reliable results and I feel the method was suitable for a classroom based experiment, I do think that it would be necessary to make modifications to the experiment if it was to be done on a philosophy essay introduction examples scale. This would be to eliminate any inaccuracies in the measurements if the height of the bounce and the temperature of the squash ball. To further my own experiment in the classroom I could now investigate the effect of the size and type of squash ball, height squash ball is dropped from, the way in which the ball is essay why we should plant trees