Tag Archives: Experiment

Brainstorming with my team.

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Last week me and my team started to come up with the ideas for the final project. We have researched numerous of experiments online and payed attention to what our classmates were doing. We did not have any good ideas until we all remembered our trip to the Museum Of Science. There we all had a chance to see how the windmill works and that’s when the evrika striked our minds. We decided that building a simple windmill with solar panels would be a great idea and will show us how they work in real life.

(Final version of our upcoming windmill)

That’s when our group leader found all the necessary work materials and assigned every member each task. Me and Marina are focusing on outline, for instance while the rest of the team is focusing on the presentation itself. I am lucky to have such an organized team which takes responsibility. It will be an awesome experience when the final presentation comes.

Thanks Eric Kebschull, An Duong, Jose Honold and Marina Sidenko for being a great team members to work with!

Experiment 2: Force and Energy, Velocity and Acceleration, and Power.

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Me and my partner Maria Sidenko were given a unique opportunity to see how Newton’s 2nd Law works in real life in our Science&Innovation class. Our task was to use the Lego Mindstorm motor to lift weights with a pulley in order to see how Newton’s 2nd Law works. Newton’s second law of motion shows the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables – the net force acting upon the object and the mass of the object. We were using the VI to converse the results into the excel format which we later used to calculate Power, Acceleration as well as see how visually the results are(By creating a “Scatter” and a “Trendline”). We got the following table:

1

2 3 We have computed the potential energy by using the formula: Potential energy = m*g*h. Then we determined how the battery energy drainage changes throughout the experiment.  Since the energy of the battery was converted to the potential energy of the masses, we had greater masses and as a result got the greater battery drainage.  The experiment clearly showed us how the Newton’s 2nd Law works and how the potential energy is converted.

Class Experiment (02/13/13)

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In the lab experiment which we did last class we were practicing the Faraday’s Law. We were shaking a tube which had a magnet which traveled through a coil of wires.  We were supposed to show that the faster we shaked the tube, the greater the generated voltage would become. By using the VI program me and my colleague Marina Sidenko obtained the following results.

Here, it is noticeable that the more shakes there were – the greater the the sum of the squares of the voltages had become. This experiment showed us how the generated voltage increased and how the Faraday’s Law worked. I would like to thank my colleague Marina S. for the great job!

SCI-184 Lab experience

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Last week(01/23/13), I had my first lab experience in my Science and Innovation class. We were given a task to build a robot which would be further controlled by a PC program allowing the robot to move in the student given directions. Me(Andrei Kozlov) and my colleague Marina Sidenko had been building it for an hour or so, but we managed to do this and the robot was working successfully! This class(01/30/13) we were given the task to measure the diameter, circumference, rotation, rotation 2. The results are:

Circumference is 0.157 which is computed by using the formula “Pie” * Diameter

a) Rotation is 558 and Rotation 2 is 554, wheel rotations is 1.55. One rotation is 360 and 1.55 is 558 or 554, according to the data which was obtained during the experiment.

b) The time was set for 1 second (1 second = 1000 milliseconds).

c) The distance the car moved is 0.25. Depending on how the car needs to travel, the turns can be obtained during the process.

We have used a ruler to measure the distance and came to conclusion that the distance = 30 cm(0.3m). This identifies the discrepancy between manual and automatic results which are 0.3 m and 0.25 m.

Then we have changed the Power in VI from “75” to “80” and the distance became 35 cm (0.35m). The automatic measurement is 28 cm (0.28m)

 

Being involved in this experimental precess was an interesting and unusual experience for me, I really enjoyed it!