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OksanaZ

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  1.  THE ANTONIO JAMES MCINTYRE III

    adam kirchgessner

    hannah halloran

    oksana zubrzycka

    The young physicists at Irondequoit have calcultated the acceleration due to gravity, the first step the students took were meausring the distance from the top of the ceiling to the floor which had a distance of 2.74 meters, they then used a Voit ball and dropped it to the floor and calculated the time that it took to hit the ground. THe average time was.71 seconds and since the distance was 2.74 m the group used the kinematic equation d=vi(t)+1/2at^2 which they then derived to 2d/t^2=a to get the acceleration. If the numbers the group collected are correct or close to being consistant the acceleration should of been 9.81m/s2 but this came to be untrue.  

    The number the students should have got was 9.81m/s2 which is the gravitional pull to the center of the earth, the numbers the students got were 14.24m/s2, 7.76m/s2, 6.07m/s2 and 10.28m/s2. The percent error of the group was extremly high to start where it was 45% but then went downn to 20.89% to 38.12% and all the way down to 4.79%.  This lab showed how poorly the timer of the group timed. The percent error was so high was because of the possible unaccurate measurements from the ceiling to the ground as well as the possible inaccurate timing, any change in these numbers can totally change the gravitational pull and proved to be true.

  2. The appearance of a velocity vs. time graph for an object moving with uniform acceleration is a straight line  at a constant slope. The slope of a velocity vs. time graph represents the acceleration of the 200g and 500g objects. The acceleration of an object in free fall is 9.81 cm/s squared. Yes because the heavier the object, the greater the acceleration will be and the less heavier object has a lower acceleration rate. Two sources of error throughout our lab could have been the measurements of the displacement of each interval of each object and also could have been calculating the percent error because the percent error was way over 100 resulting in an inaccurate percent error.

  3. Heyy, my name is Oksana and it's my senior year of high school already. In school my favorite subjects are math because I like to be challenged at problem solving and English for the reading. Outside of school, I like to hang out with my friends, read, go running or on a walk, and dance. 

     

    I decided to take physics this year because I've been thinking about becoming an optometrist as a possible career choice and I found out that we will be learning about optics which sounds exciting to me. Hopefully by taking this course I learn more about what I want to do in the future and see if this career would really interest me and suit me. 

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