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Perfect Paragraph: Physics

Submitted by kmydosh on Thu, 09/21/2017 - 22:09

This experiment tested various frequencies on a string that had three different weights attatched to it, therefor adjusting the tension. The data from this experiment showed that as tension was increased using more weight on the string, velocity increased as well. This experiment was done by varying the frequencies on the PASCO 550 interface machine until resonance was clearly observed. Because of resonance was determined by only subjective observation this could account for some error in the data collected. However, the data collected did prove that as tension was increased on the string the speed of the wave increased as well. For 200g the average speed was 63.3 m/s with a tension of 1.56N. For 400g the average speed was 88.4 m/s with a tension of 3.92N. For 600g the average speed was 105.3 m/s with a tension of 5.88N. As weight was added to the string the tension was increased so did the velocity of the wave.

 

Physics Abstract

Submitted by kmydosh on Tue, 09/19/2017 - 19:33

This experiment used PASCO 550 interface was used to visually see the phenomenon of resonance on a string. We explored how frequency changes the wavelength and velocity of a wave on a string. The string will be held by two points and a frequency will be passed through it by the PASCO 550 interface machine. When vibrations of various frequencies are applied to the string, nodes and anti-nodes can be observed when resonance is achieved. A node is a place of no disturbance, and on the string, it looks as though the string is not moving in that place. An antinode is a place of maximum disturbance or the highest amplitude of the wave. The frequency was gradually changed until clear nodes and antinodes were formed. We did 5 trials for three different weights. 200g, 400g, and 600g weights were applied. 

Methods Project

Submitted by kmydosh on Thu, 09/14/2017 - 14:51

For my methods project I would like to include one of the hidden gems around the UMass campus. There are many that come to mind. The first being the Durfee Conservatory. I am thinking about focusing on an organism in there. There is a koy pond, many plants and lots of succulants. If the aim of the project is to make a digital drawing of an organsim I want to focus really closely on one organism that is not too complex. My thoughts at first immeadiately went to a squirell. There are always many of these on campus and they always seem to present when you aren't looking for them. But I was afraid those might be too hard to sit and observe or even to find. Although the squirells are common they are wild animals and not easily predictable. A stationary plant might be an easier, more reliable organism for somone to find and observe. I think a suculent could be beautiful and easy to sit and draw. 

First in Class Perfect Paragraph Entry

Submitted by kmydosh on Fri, 09/08/2017 - 15:21

The insect is a creamy off white with a chestnut brown head. The body is soft and matte while the head is shiny and hard. Its body is ridged, or segmented, with creases like a brain or caterpillar. In addition, it has a row of dots along each side of its tubular body. Regarding the insects locomotion, it uses its front four legs to pull itself along, using its back legs to push its body forward. The maggot waves its head around, exploring the plastic cup containing it. As it moves, its whole body can be seen pulsing and writhing. The specimen has a difficult time crawling around the smooth surface of the plastic, it’s feet gaining no traction. It stays in one place while its feet move back and forth fruitlessly. The body of the insect curls and uncurls on itself. As it tries to moves, ripples are sent down the rest of the body. This insect never stops moving, it is constantly feeling around with its head. It uses hairs and other sensory organs along its body and head to see its surroundings. Time will tell what the maggot will grow into, if anything at all. 

First in Class Writing Assignment

Submitted by kmydosh on Fri, 09/08/2017 - 15:06

The insect seems to be a maggot or larva of some species. It is a creamy off white with a chestnut brown head. It uses its front 4 legs to pull itself along in squirming motions, using its back two legs to push its body forward. The maggot waves its head around, exploring the plastic cup containing it. As it moves its whole body can be seen pulsing and writhing. It has a row of dots along each side of its tubular body. The body is soft and matte while the head is shiny and hard like a shell. The specimen has a difficult time crawling around the smooth surface of the plastic, it’s feet gaining no traction. It stays in one place while its feet move back and forth fruitlessly. The body of the insect curls and uncurls on itself and as it tries to moves, ripples are spent down the rest of the body. It’s body is ridged, with creases like a brain or caterpillar. It is likely to grow into some type of winged insect like a fly or moth. This insect never stops moving. Its head is always waving back and forth with it’s feet constantly feeling. It is 2.5cm

            When prodded it reacts by clenching up its entire body and curling away from the stimulus. It demonsatred the ability to walk backwards when in distress. It does not move quickly but moves much quicker when provoked to. It has the ability to move every single part of its body. Its front legs are hard and look like spikes while its back legs are soft, and appear to have a flat bottoms reminiscent of something like a suction cup. While the body is a creamy off white it’s skin is translucent and internal anatomy can be observed. There is a darker line running down the back of the specimen but it appears to be closer to a vein than anything remotely like a back bone. It also has two back feet on the very end of it’s body with 6 soft feet underneath the body closer to the head of it. The two ends of it appears to be darker than the middle section, indicating that there is a denser collection of organs in these locations. Two projections can be seen from the head, these look like sensory organs used to collect information about its environment. It also has small nearly invisible hairs coming off the head and general body. 

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