Free Essay

Ge150

In:

Submitted By TheSarge2u
Words 1675
Pages 7
Cover page: Unit 2 Lab 2.1.1 States of Matter
.
Survey of the Sciences
Week 2
Assignment 2 – Lab 2.1.1 – States of Matter
Date of assignment: 12/18/2013
Date turned in: 01/15/2014

Liquid at over 650K | Liquid under 650K | The molecules appear to be faster and more spread apart | Molecules are even faster, mostly touching and mostly compact | Gas at over 1540K | Gas at under 300K | Faster and mostly apart and randomly touching | Slower, more clustered and in ring shapes and mostly touching with less space apart | Solid at 350 – 360K and over 600K | Solid at under 10K | Moving from one position to another at accelerated pace but mostly touching at an even faster rate and mostly spread apart | Less movement, but still clustered and connected in ring forms |

Solid is at 157K and appears to be moving slower and less close but compact in rings. Liquid is at 328K and appears to be closely bonded but moving around much faster. Gas is at 809K and appears to be moving much faster and occupying more space than solid and liquid. But when the temperature is reduced to about 97K the rate of movement decreases and the molecules get more clustered and compact, the reaction in liquid is almost the same as gas when the temperature is reduced to the same 97K. The reaction in solid liquid and gas stages of water are almost constant at a reduced temperature of 97K. Only the solid state resembles itself in heated and cooled stages. The others have different resemblance.

In conclusion, movements in different stages of matter differ depending on the temperature and the reactions are different as well.

Cover page: Unit 4 Lab 1

Survey of the Sciences
Assignment –Unit 4 Lab 1: Flame Spectroscopy
LAB REPORT
Date of assignment: 01/15/2014
Date turned in: 01/15/2014

I was familiarized with the concepts of linear and angular momentums based on newton’s laws stating that unless external forces act on any system, the change will always be a zero and that any object in a rotating movement will continue to rotate unless a twisting force of torque interferes to make it stop. Gravity according to Isaac Newton states that when objects are dropped, they must at some point in time fall (to the ground). I also got the measurements formulas for the force of gravity in comparison to weight and distance. Newton’s law of universal gravitation was also put into perspective. It also gives understanding as to why and how the moon wouldn’t fall down to earth because of the force holding it in place (gravity). Formulas for measuring force, mass and gravity are also discussed.
Gravity and motion are very vital in how things move around and the direction of travels. Also the impacts that are brought upon them as well as the force they impact onto other objects or forms of matter around them. There is also the relationship between the “Big G” and the “little g” as they relay universal constant and gravitation and the earth’s gravitational acceleration.

Lab Report
Using Gravitational Force as a Measurement Tool

Answer the following questions about the results of this activity. Record your answers in the boxes.
Send your completed lab report to your instructor. Don’t forget to save your lab report to your computer!

Activity 1
Record your data from Activity 1 in the boxes below. Enter the data for the sample you used in each trial (5000 rpm, 10000 rpm, etc…) in the appropriate columns and the corresponding g-force, number of layers, and position of layers position results.

You will need to use the following formula to assist with your laboratory report: * G-force =0 00001118 x radius of centrifuge arm x (rpm)2 * The radius of the centrifuge arm for this instrument is 10 cm.

Speed | 5000 rpm | 10000 rpm | 15000 rpm | 20000 rpm | G-force | 2795 | 11180 | 251550 | 447200 | Number of Layers | 5 | 9 | 10 | 6 | Position of Layers | | | | | 1. Explain what happens to the G-force as the speed of the centrifuge increases.The soil levels tend to increase and thin out

The soil levels tend to increase and thin out

2. Which is likely the best speed to separate the components of this soil sample? Why?15000rpms because the G-force is greater and separation is much faster and highly distinguishable at this time

15000rpms because the G-force is greater and separation is much faster and highly distinguishable at this time

3. Describe in which layers you are likely to find the organic matter, gravel, sand, silt, and clay at the following speeds: a. 5000 rpm b. 15000 rpmAt the bottom layer since those are heavier and have a tendency to sink or fall at the bottom

At the bottom layer since those are heavier and have a tendency to sink or fall at the bottom

|

Activity 2
Record your data from Activity 2 in the boxes below. Enter the data for the sample you used in each trial (0.5, 1.5, 2.0, and 2.5 grams/ liter cesium chloride) in the appropriate columns with the corresponding g-force, number of layers, and position of layers results.

Cesium Chloridegrams/liter | 0.5 | 1.5 | 2.0 | 2.5 | Number of Layers | 4 | 10 | 10 | 12 | Position of Layers | Spread out(thicker) | More spread and more layers | More spread out and more layers | Spread out, thinner and more layers as well |

4. Explain what happens to the drag as the cesium chloride concentration increases.The soil gets more spread out, more layers are produced and the soil/layers become thinner as well

The soil gets more spread out, more layers are produced and the soil/layers become thinner as well

5. Which is likely the best cesium chloride concentration to separate the components of this soil sample? Why?At 2.5 because at this level, the particles separate better

At 2.5 because at this level, the particles separate better

6. Describe in which layers you are likely to find the organic matter, gravel, sand, silt, and clay at the following speeds: c. 0.5 grams/liter of cesium chloride d. 2.5 grams/liter of cesium chlorideOrganic matter are most likely to be found at 0.5 grams/liter cesium chloride since these particles sink and would most likely be found at the bottom/sink

Organic matter are most likely to be found at 0.5 grams/liter cesium chloride since these particles sink and would most likely be found at the bottom/sink

7. Explain any differences in the thickness of similar bands at the different cesium chloride concentrations.At 0.5, it is much thicker, less thick at 1.5, much less thicker at 2.0 and a lot less thick at 2.5

At 0.5, it is much thicker, less thick at 1.5, much less thicker at 2.0 and a lot less thick at 2.5

8. Based on the data from Activities 1 and 2, which is likely the best speed and cesium chloride concentration combination to distinguish different types of soils? Why?At 20000 rpms and 2.5

At 20000 rpms and 2.5

|

These experiments show how scientists manipulate the variables of a centrifuge in a better separation of mixtures. This is determined by changing the speeds of the centrifuge and by altering the thickness of the solutions in the centrifuge test tubes. The densities of different soil samples/particles are key determinants as well.
Using angular momentum in the manufacture or designing of car tires will help in maintaining balance and stability as well as aerodynamics and direction of motion and the relativity between matter and gravity and angular momentum’s effects.
Unit 2. Exercise 1 – Chapter 2 * Scientists today are faced with the tremendous burden of proving their work beyond all reasonable doubts. Such experiment/research as the one having to with cloning and genetic harvesting that has led to the creation of “Dolly the sheep” has had widespread criticism from mainstream and religious entities calling it unreligious and unethical in some arenas. * Since momentum tells us the measurement of how hard it is to stop a moving and hence, if the bowling ball was heavy, then it would be harder to come to a stop even when it has knocked down the pins. Whereas in a game of pool, momentum is conserved; that is, if one ball stops dead after the collision, the other ball will continue away with all the momentum. If the moving ball continues or is deflected then both balls will carry a portion of the momentum from the collision. * Inertia and gravity could be reasons why a cup punched with holes will not leak water when dropped from an elevated position.

Unit 2. Exercise 1 – Chapter 3 * When you rub your hands together vigorously, you feel the heat building up and in this process; you are converting kinetic energy into heat energy. * I would definitely purchase the one that is expensive to buy and cheaper to run because it will save me more money in the long haul and will also be more environmentally friendly and very energy efficient as well.

Unit 2. Exercise 1 – Chapter 4
Discussion Questions * Heat has a directionality; it always flows/travel from hot to cold * Cogeneration does not violate the law but it does violate the first law and no, the second law only forbids efficiency equal to 100 %. Yes, the second law also forbids high efficiency and finally yes, waste heat can't be converted into mechanical work.
Investigation Questions * This involves using sustainable practices during the construction process. Example: using recycled materials and reducing the energy/resource needs of the house. Having energy efficient status; i.e. the amount of electricity used from electric companies. And this is very highly considered in new construction * These devices work because most of them are equipped with thermal/heat seeking and infrared technology that can locate a body through their heat index

Similar Documents

Premium Essay

Ge150

...Cover page: Writing Assignments 1 & 2 William H Johnson Jr. Survey of the Sciences Week 1 Assignment 1 – Writing Assignment 1: Science in the media Assignment 2 – Writing Assignment 2: The Process of Science Date of assignment: 12/18/2013 Date turned in: 12/18/20 My best teacher was my French language instructor by the name of Cilote Yves, from France and he was the most encouraging and patient professor I have ever met. He always went the extra mile to make sure that his students understood what they were been taught and in turn have them implemented in real-time scenarios. He was both an instructor and a mentor and made his course very interesting and likeable. He provided all the tools and incentives that were needed for us to accomplish whatever project we undertook! He was also very involved in our lives on and off campus and was very, very, down-to-earth and did everything he could to make sure no one dropped out of school and stayed to the very end. He will truly remain one of the best to me! Cover page: Writing Assignments 1 & 2 William H Johnson Jr. Survey of the Sciences Week 1 Assignment 1 – Writing Assignment 1: Science in the media Date of assignment: 12/18/2013 Date turned in: 12/18/2013 Unit 1: writing Assignment 1. Science in the Media Title 1: Kids' Reading Success Boosted by Long-Term Individualized Instruction Results were based on studies and research carried out by scientists and psychologists, and teachers and...

Words: 1054 - Pages: 5

Premium Essay

Cancer and Mutations

...Treating Ovarian Cancer Tara Potter ITT Technical Institute/ Breckenridge School of Nursing In partial fulfillment of requirements in GE150 Survey of the Sciences/ Dr. Lok February 29, 2016 Treating Ovarian Cancer Cancers of the ovaries, fallopian tubes, and primary peritoneum are the fifth leading cause of cancer death in women in the U.S. These cancers are often found at advanced stages. According to my research, they don’t typically cause signs or symptoms in the early stages, also there isn’t very many screening tests for them. The most common type of ovarian cancer is called ovarian epithelial cancer. It begins in the tissue that covers the ovaries. This cancer sometimes begins at the end of the fallopian tube near the ovary and spreads to the ovary. Ovarian cancer can also begin in the peritoneum and spread to the ovary. The stages and treatment are the same for ovarian epithelial, fallopian tube, and primary peritoneal cancers. To my surprise, while researching the genetic link pertaining to ovarian cancer I found that 90% of all ovarian cancer is acquired by chance while 10% is inherited. Research has successfully identified three hereditary factors that predispose women to ovarian cancer: 1. Spontaneous new mutations in the tumor suppressor genes BRCA1 and BRCA2 2. Susceptibility to HNPCC also known as Lynch Syndrome II, a hereditary disease that puts individuals at risk for ovarian cancer. 3.Hereditary mutations in the BRCA1 gene or BRCA2 gene. There are three...

Words: 741 - Pages: 3

Free Essay

Information Security

...GE 150 Survey of Science LAB- Unit 3.2: Light and Wave Simulation rlg 1/16/14 A. Water Wave Simulation: 1. As the Frequency and Amplitude slider moves to the right of the bar the water droplets rate increases, which creates a wider wave spectrum-the waves appears to overlap each other as the frequency is increased. I also observed that the water waves became more narrower when I slid the frequency and amplitude slider to the extreme right. 2. The water level on the Graph was observed to be still (no wave action) when the slider of the frequency and amplitude is at the lower end of the scale, once the slider is moved towards the center, the waves began to produce a crest and trough. I observed that the crest and trough created by the waves length became shorter and narrower. 3. When the rotate view is manipulated, I observed the that the water drips to be more dense (heavier) but still creating wavelengths with crest and troughs. 4. Adding a second drip appears to increase the density of the water drips there by creating a stronger and larger (higher) wave crest and troughs, putting them closer together appears to diminish the depth of the trough and crest is not as high. 5.With the second drip turned off and a barrier added, the frequency of the drips increases( more constant drips). With the barrier position altered, the wave lengths are observed to be narrower with a lower crest and troughs. B. Sound Wave Simulator: 1.The sound wave energy being sent out observed...

Words: 744 - Pages: 3

Premium Essay

Course Descriptions

...Composition course This course covers phases of the writing process, with special emphasis on the structure of writing and techniques for writing clearly, precisely and persuasively. Prerequisite or Corequisite: TB133 Strategies for the Technical Professional or equivalent GE127 College Mathematics I | A 4 credit hour Mathematics course This course will include, but is not limited to, the following concepts: quadratic, polynomial and radical equations, linear functions and their graphs, systems of linear equations, functions and their properties and triangles and trigonometric functions. Activities will include solving problems and using appropriate technological tools. Prerequisite: GE184 Problem Solving or TB184 Problem Solving or GE150 Survey of the Sciences or equivalent; Prerequisite or Corequisite: TB133 Strategies for the Technical Professional or equivalent GE184 Problem Solving | A 4 credit hour Science course This course introduces students to problem solving techniques and helps them apply the tools of critical reading, analytical thinking and mathematics to help solve problems in practical applications. GE192 College Mathematics II | A 4 credit hour Mathematics course This course will include, but is not limited to, the following concepts: exponential and logarithmic equations and functions, graphs of trigonometric functions, trigonometric equations, polar coordinates, oblique triangles, vectors and sequences. Prerequisite: GE127 College Mathematics I...

Words: 1186 - Pages: 5

Premium Essay

Lung Cancer

...Unit 8 Assignment 1: Mutations and Cancer GE150 Date Due: May 17,2016 Elaine Leppert Lung Cancer Lung cancer, the most common killer cancer in the world, is largely caused by smoking. New results suggest that amongst smokers, some people may be as much as 80% more at risk than others because of their genes. By scanning the entire genomes of lung-cancer patients and healthy controls, research teams identified a region on chromosome 15 that seems to influence the likelihood of developing cancer. People possessing a certain set of mutations at this genetic location are more likely than others to have the disease. Research suggests about 50% of the general population carries a single copy of this cancer gene variant, while another 10% of the population is likely to carry two copies of this set of mutations, raising cancer risk by as much as 80% relative to people with equivalent lifestyles without the cancer-linked gene variant (Hopkin,2016). The most relevant genes in lung cancer include the following: EGFR, KRAS, MET, LKB1, BRAF, PIK3CA, ALK, RET, and ROS1 (El-Telbany & Ma,2012). Lung Cancer and the effects of smoking A typical smoker who refuses or fails to give up has a roughly 15% risk of lung cancer over their lifetime, but with two copies of the genetic variant, this rises to 23%. Researchers disagree over whether non-smokers who possess the genetic risk...

Words: 1645 - Pages: 7

Premium Essay

Deforestation of the Amazonian Rainforest

...Deforestation of the Amazonian Rainforest Tiffani Swank GE150 Survey of the Sciences Erica Price/Tuesday at 9:00 a.m. to 12:24 p.m. Earth’s natural resources are what we are extracting from the earth. Industries, which excavate the earth’s resources, include forestry, oil extraction, and mining. Present-day society is based upon a vast consumption of non-replaceable minerals and fuels such as coal, oil and natural gasses. Other materials such as cotton, wool timber and produce, if utilized wisely can be replenished. Is the carbon dioxide level higher, due to massive amounts of forest being cut down and the levels of carbon dioxide left in the atmosphere higher? Therefore, my hypothesis is that deforestation of the Amazon rainforest leads, not only, to a reduction of the amount of carbon dioxide taken out of the atmosphere, but also to an increased release of carbon dioxide in the atmosphere. The earth’s natural resources are there for all of us to use. We need the water, food, air, energy, medicines, warmth, shelter and minerals that the earth’s natural resources give us. Therefore, keeping us fed, comfortable, healthy and alive. If we use the resources carefully then they will last indefinitely. But if we use them wastefully and excessively, they will soon run out and all will suffer. The excessive waste is happening in our rainforest every minute of every day of...

Words: 2808 - Pages: 12