Centripetal Force Essay Example

Centripetal Force Essay Experiment: Uniform circular motion and centripetal force Results Mass(kg)| Radius(m)| Velocity(m/s)| CentripetalForce[Calculation](kg. m/s2)| CentripetalForce[Measure](kg. m/s2)| StandardDerivation(%)| 0. 02406| 0. 0900| 2. 023| 1. 094| 0. 7349| 32. 8| 0. 02406| 0. 0900| 2. 584| 1. 785| 1. 446| 19. 0| 0. 02406| 0. 0900| 3. 153| 2. 658| 2. 351| 11. 4| 0. 02406| 0. 0900| 3. 702| 3. 662| 3. 374| 7. 86| 0. 02406| 0. 0900| 4. 238| 4. 801| 4. 525| 5. 75| Force versus Mass Mass(kg)| Radius(m)| Velocity(m/s)| CentripetalForce[Calculation](kg. m/s2)| CentripetalForce[Measure](kg. m/s2)| StandardDerivation(%)| 0. 109| 0. 0900| 3. 86| 1. 805| 1. 519| 15. 8| 0. 0225| 0. 0900| 3. 86| 3. 725| 3. 825| 2. 68| 0. 0437| 0. 0900| 3. 86| 7. 235| 7. 531| 4. 09| 0. 0672| 0. 0900| 3. 86| 11. 13| 11. 615| 4. 36| Force versus 1/Radius Mass(kg)| Radius(m)| Velocity(m/s)| CentripetalForce[Calculation](kg. m/s2)| CentripetalForce[Measure](kg. m/s2)| StandardDerivation(%)| 0. 0437| 0. 0900| 3. 86| 7. 235| 6. 87 9| 4. 92| 0. 0437| 0. 0800| 3. 86| 8. 130| 8. 253| 1. 51| 0. 0437| 0. 0700| 3. 86| 9. 301| 9. 145| 1. 67| 0. 0437| 0. 0600| 3. 86| 10. 852| 10. 118| 6. 76| Interpreting data Based on the graph plotted, we can know that : F (centripetal force) is directly proportional to v2 (velocity2) * F (centripetal force) is directly proportional to m (Mass) * F (centripetal force) is inversely proportional to R (Radius) And so, it is proved that the centripetal force of the uniform circular motion ; F=mv2R Discussion * As for the first experiment ( Force versus velocity? ), due to some technical problem all the data that had been obtained from the experiment couldn’t be saved thus all the data are taken with approvement from our friend , Gary Tan ( General Physics and Experiment (I) [PHY 1011-09-00] ). * According to the Force versus velocity? , graph , as the velocity increases the centripetal force increases as well. The same thing goes for the Force versus Mass graph , as the mass incr eases the centripetal force also increases. As for Force versus 1/radius graph, the more the radius increases the more the centripetal force decrease. Thus , the hypothesis is accepted. * There is some difference between the actual value of centripetal force which can be obtained through formula ( mv? /r) and the measured value of centripetal force as shown in the table. This is due to some error made in experiment which are basically divided into two types; systematic error and random error. Systematic error are the unavoidable error due to the defect of the equipment itself meanwhile random error are errors made by human such as parallax error. * When handling this experiment , there are some precaution that need to be taken in order to obtain the best result. Firstly , its best to avoid the parallax error when reading the ruler. Our eyes should be perpendicular to the ruler when reading the measurement to obtain an accurate reading. On the other hand as for the force versus 1/radius experiment , one should make sure that the velocity is constant through out the whole experiment by increase the voltage for each repetition. We will write a custom essay sample on Centripetal Force specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Centripetal Force specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Centripetal Force specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Furthermore , the wire that are hung at the force sensor should be in straight and directly perpendicular towards the pulley. These precautions are important as it would affect the result of one’s experiment. CONCLUSION * In conclusion , one’s centripetal force can be obtained from the formula F=mv2R . Reference * Hugh D. Young, Carnegie Mellon. (2012): University Physics with Modern Physics, 13th edition. ( Page 154,155 ) [1] (Centripetal force) | | | | | 12| e-mail| jais[emailprotected] ac. kr| | 2013142068| | 323? | | Azrin Lau| | |

Lin Onuss Cultural Identity Seen in Fruit Bats Essay Example

Lin Onuss Cultural Identity Seen in Fruit Bats Essay Example Lin Onuss Cultural Identity Seen in Fruit Bats Paper Lin Onuss Cultural Identity Seen in Fruit Bats Paper He became a professional artist In the year of 1974, throughout his artistic life he became a exceedingly creative artist and arts administrator. From the very beginning of his days he was portrayed as an Ideal Australian, his cultural identity was clear. As he was born to an aboriginal father and a white mother, he was a living example of the conception that two people, even from different cultures, different upbringings and beliefs could come together as one. Two examples of artworks that demonstrate his cultural Identity are: Fruit Bats (1991 ) and Fruit Bats 1 991 Is a work that shows a combination of the two cultures that make Line Onus. This work visually shows the two societies slowly combining. The mall aspect of the artwork that shows the western cultures identity would be the hills hoist clothesline which is what the bats are hanging from. The Aboriginal aspects of this org that suggest the combining of the two different cultures are those such as the aboriginal symbol for bat droppings (Earner) which is in fact is made from the droppings from the bats hanging in this work. Another aboriginal characteristic of this work is that all ninety-nine fiberglass fruit bats have been painted with a type of Aboriginal pattering called rack. Not only do the traditional techniques used for the fruit bat droppings and patterns on each bat contrast with the current materials of today, they also contrast with the modern inspiration of these installations. The main characters in the work are the fruit bats these are presented as the link between the two cultures within one land. The droppings from these fruit bats could be interpreted to say the aboriginal culture is marking their territory. The fruit bats can therefore be seen to symbolism the will to repossess the land that rightfully belongs to the aboriginal people.