Course Hero is not sponsored or endorsed by any college or university. energy that spontaneously passes between a system and its surroundings in some way other than through work or the transfer of matter. This allows you to get a more accurate answer. Explain your reasoning: Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, for the other two cups, filling one with 200 g o, other two cups, filling one with 100 g of wet sand a, the samples set for approximately 25 minutes, touching the materials to assess their the, Civilization and its Discontents (Sigmund Freud), Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. F"361:~Sx~(1 3a1Hf!&%d~~Iy9ed*0|bc_.Q|Akh'Se& fOr)/x Get your timer ready and prepare to drop the ball. LAB 5 (Week 6) Types of Reactions; LAB 6 (Week 7) Mole Ratios and Reaction Stoichiometry; LAB 7 (Weeks 8 & 9) Titration of Vinegar; LAB 8 (Week 10) Calorimetry and Hess's Law; LAB 9 (Week 11) Determination of the Gas Constant; LAB 10 (Week 12) Gravimetric Analysis of an Unknown Sulfate; LAB 11 (Weeks 13 & 14) Spectrochemistry After these values were calculated the ratio of the final kinetic energy to the initial kinetic energy was calculated in order to compare the values. Considerations: These are not questions to be answered as a separate part of the lab report. We can say that one form of energy (________) is converted in another form of energy (kinetic energy), We can say that one form of energy (potential energy) is converted in another form of energy (_________). Data section includes the provided table. of tape at these points to serve as targets. Relationship between initial and final velocities in an elastic collision . After the lab this data was analyzed using the momentum equations above to give the following values. Add water to the cup until the total mass reads 200 g. Repeat a Potential energy d Chemical energy e Electrical energy energy stored in a bicycle at the top of a hill the heat released by a steaming bag of popcorn the bonds between the protons of a. Also, to see how gravity pulls the ball down storing energy and releasing the energy as the ball hits the bottom of the ramp and to see the distance the ball travels after books are added. 2. Which answer correctly explains how the balls will move after a totally inelastic collision? If using one heat lamp, put the six cups in a tight Create your account. xZY6~xJek|$:um@k(#i,Q@!1aKT&or^Z7m[;m7?obfO 3ne`U3E@-v6zy 1. Explore different tracks and view the kinetic energy, potential energy and friction as she moves. Using the kinetic energy equation. The conservation of the energy is happening in the presence of ____________ like gravitational forces or the force in a spring. This allows for a more accurate measurement. CLEANUP : Leave the test tube with wax stuck in it in the lab station. This would force the carts to stick together after collision. They should start immediately when you drop it and stop it exactly when it hits the ground. Momentum (, ) can be calculated by multiplying mass (, To begin the lab a Vernier Dynamic Track was set up and leveled on a table. The hypothesis that if it the ball was dropped from a higher drop points, it would have a greater bounce height was supported. Let's start with GPE. Place a book on top of the .95m table. (c) The balls will move to the right because v1>v2v_1>v_2v1>v2 before the collision. v . If you do not have . Because the percent differences were relatively close to zero the momentum of the system was conserved. endstream endobj 500 0 obj <>stream Repeat Steps 68d for the lead The initial velocity of the standard cart and the final velocity of both carts, moving together as one, were measured using the Photogate sensors. Close the lid snugly and make sure the thermometer is immersed . Textbook questions 4 and 5 of "Practice Problems," p. 179 It can be proven that there were multiple sources of error by the slope of the equation on the Force vs. Acceleration group for this lab. Describe the three different types of bonds, providing examples of molecules formed through each type of bond. HELP ASAP ITS 8th GRADE SCIENCE BUT IT DOESN'T HAVE THAT OPTION The graph shows the kinetic energy (KE) and potential energy (PE) of a bouncing ball o ver a period of 9 seconds. In this lab two carts will undergo elastic collisions, inelastic collisions, and explosions on a Vernier Dynamic Track. In this experiment we will be measuring the rate of decomposition of hydrogen dioxide with the following reaction: In the first experiment, How does mass affect your game? it shows that the data on Ball- Mass 3 that the 10 pound bowling ball had the highest kinetic energy of 27(J), the greatest velocity (m/s) of 3.42, and in average it produced 4 bowling points. The values of the velocities were shown on the Logger Proprogram. When collisions occur, two properties of the colliding bodies are changed or transferred: their Energy and Momentum. Reddit and its partners use cookies and similar technologies to provide you with a better experience. rate of fall of an object was determined by its weight held that matter was constructed out. Pour out some of the water from your soda bottle to adjust the total mass of, water and bottle to 0.125 kg (125 g). edgenuity answer key r edgenuity reddit . As the height decreases the GPE will ________ while its kinetic energy increases. Coil the wire I. Today, we're going to see how this plays out in the real world. C. Measure the change in temperature for different materials and mass. Next, we need to do some calculations to find GPE and KE. web feb 7 2023 edgenuity chemistry lab report answers title the title should be concise and clearly describe the purpose of the experiment. ANSWER Step 5: Set Up the Titration a) Turn the cockstops off. u=MF)1\?Nt5hfw!wt{w{ry5Z~sMezs,'wMp+`$71MA. Measure the mass of your ball on the balance. If you measure it in grams, simply divide the number by 1000 to get kilograms. I would definitely recommend Study.com to my colleagues. The standard cart was pushed towards the plunger cart, which was at rest. So, now that it's made, I hope it helps a lot of people to get work done especially if they're really behind! If you added the amount of KE and heat energy together, you would get the original value for GPE because energy is conserved. c. Coil the wire around a pencil or other object, or fold the wire tightly to create a more first example, heat energy is transferred from the stove to the pot of water, and the water absorbs the heat energy and will eventually begin to boil. This would force the carts to repel each other and not stick together during collision. G. Establish an initial temperature of the metal samples. (2015,[online]). a. Go to pages 5 to 7 of Assignment Booklet 2B and answer questions 10 to 15. 3 0 obj The first step was to graph the distance-time graph from the data collected. The lamp bulb should be positioned over the cups Repeat the process of data collection at least 5 times and take the average. cup, allow the reading to stabilize. What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s? This was calculated using the following formula. e. Remove the steel wire sample and empty the calorimeter. The equation for KE is 0.5 multiplied by mass, multiplied by velocity squared: If you're struggling getting the time exact, try doing the experiment with two people. The ______________ is happening in the presence of conservative forces like gravitational forces or the force in a spring. program was set up so that it would collect the Gate Time from each Photogate sensor. Two clay balls are moving toward each other. If you want the answer key, you can dm me or you can comment so it'll get more people to see it. I made this because I was having to do all the research and I would've loved it, if someone had already done this. Each object can only have a certain amount of energy and that energy is in different forms. These results are shown in the table below. - h is the maximum height of the object relative to the level of reference chosen. Were the values for KE and GPE the same? If you have access to a supervised laboratory, do Part A. This is because of the law of conservation of momentum. An object moving with a speed of 67 m/s and has a kinetic energy of 500 J, what is the mass of the object. Overall the total energy (_____________) is conserved. While the slope of the linear trend line was 4084.798, the actual mass of the van and Mr. Simmons combined was 2450 kg. Hydrogen bond, water. Physics Lab - Work & Kinetic Energy (uses Science Workshop TM Interface) Purpose: The purpose of this lab is to compare the work done on an object with the object's change in kinetic energy. This was done by causing elastic collisions, inelastic collisions, and explosions of carts on a Dynamic Track. The nonconservative work is the _________________________, Conservation of change in kinetic energy formula, Lab 9: Centripetal Force & Rotational Dynamics, Mathematical Methods in the Physical Sciences. If this wasn't your finding and GPE was greater, you might have some errors in your timing for dropping the ball. As the height decreases the GPE will decrease while its __________ increases. When these ion separate, its called dissociation. The other cart was a plunger cart, which contained a spring activated plunger that could push the carts apart. They were joined together by the Velcro, and the plunger was pushed into the plunger cart. Place the strainer and lead in the hot water bath. Even thought Ionic bonds still hold molecules together, they are weaker than covalent. Cross), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Psychology (David G. Myers; C. Nathan DeWall), The Methodology of the Social Sciences (Max Weber), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), Give Me Liberty! Therefor inelastic collisions can be defined as collisions in which kinetic energy is not conserved. 5. 5) 5 mL of sugar was added to the solution and a balloon was placed over the opening of the bottle to minimize the loss of any gas from the system. In physics momentum is always conserved. The percent difference was calculated using the following formula. Table A: The Effect of Mass or Material Type on Thermal Energy Transfer. This cart also had a rod to assist in readings. M. Compute the s pecific heat of each type of metal. In this condition the two carts were placed together in the center if the Photogate Sensors. The word dichotomous comes from two Greek words that translate to "divided in two parts. These values were recorded, and the procedure was repeated five additional times for a total of six readings. A 50 kg ball traveling at 20 m/s would have kinetic energy. This button released the plunger, and propelled both carts down the track in opposite directions. 4 0 obj In our lab, some pairs would start and stop in order to remain at the correct number of pounds on the vehicle; therefore, the car had inconsistent acceleration and the data did not accurately reflect the constant rate. The analysis of. All other trademarks and copyrights are the property of their respective owners. Place a beanbag so it is centered on one end of the board at the target. Measure the mass of your ball on the balance. Using the information provided in the Introduction and your observations from Part 1, hypothesize as to the type of electrolyte the following solutions would be. If your time is greater than it's supposed to be, your results won't make sense. Other researches had similar data but were never exactly the same. We can say that one form of energy (potential energy) is converted in another form of energy (kinetic energy). K. Transfer metal samples to the calorimeter and measure the temperature change. Place an empty trimmed cup on the mass In your observations, include qualitative m = 150kg . temperature change, T, for each sample. If the slope was steeper on the graph, this meant that the cart had an increase in velocity. compact mass. Whenever an object moves, some energy is converted to heat through friction. and the calorimeter water. b. Place a small amount of candle wax into a tiny test tube that already has wax in it (scrape it off a tile using a micro spatula). We can monitor the rate at which a chemical decomposes or the rate at which a chemical substance appears. Place the lid on the calorimeter, and insert the thermometer. Lab: Kinetic Energy Assignment: Lab Report Instructions Click the links to open the resources below. Student Guide (continued) a) Place the lid on the calorimeter, and insert the thermometer. The _____________________ is the change in mechanical energy, In the presence of nonconservative forces (like friction), the total mechanical energy is not conserved. The analysis of the results of this experiment shows that momentum was conserved in all types of collisions. We interpret the = sign to mean that the gravitational potential energy of the ball before it fell was converted into an exactly . at a height of 10 cm from the materials. Objectives (3): - Explore the relationship between kinetic and gravitational energies - Analyze the importance of kinetic energy in falling objects. A 50 kg person falling at 10 m/s would have kinetic energy. Non-metals are stronger than metal and can get electrons easily from the metal. They are things for you to think about. This equation can become a powerful tool when analyzing all types of collisions. then place a thermometer in each cup and observe the readings until they do not climb Edgenuity Answer Key! The balls have equal kinetic energies (k1=k2)(k_1=k_2)(k1=k2), but ball 1, which is coming from the left, is moving faster than ball 2 (v1>v2)(v_1>v_2)(v1>v2). The initial velocity of the standard cart and the final velocity of the plunger cart were the readings from the first and second Photogate sensors, respectively, on the Logger. These values were recorded, and the procedure was repeated five additional times for a total of six readings. : an American History (Eric Foner), PWV 03 Cart on a Ramp - Cart on a Ramp lab, Medical Surgical 1 (MURS_3144_01_UG_MAIN_MEDICAL-SURGICALNURSING1), Care of the childrearing family (nurs420), Strategic Decision Making and Management (BUS 5117), Online Education Strategies (UNIV 1001 - AY2021-T), Intermediate Medical Surgical Nursing (NRSG 250), Strategic Human Resource Management (OL600), Managing Projects And Programs (BUS 5611), Curriculum Instruction and Assessment (D171), Professional Application in Service Learning I (LDR-461), Advanced Anatomy & Physiology for Health Professions (NUR 4904), Principles Of Environmental Science (ENV 100), Operating Systems 2 (proctored course) (CS 3307), Comparative Programming Languages (CS 4402), Business Core Capstone: An Integrated Application (D083), Test bank - medical surgical nursing 10th edition ignatavicius workman-btestbanks.com -zo8ukx, CH 13 - Summary Maternity and Pediatric Nursing. In the lab, the aim was to get as close as possible with both accuracy and precision when determining the mass and volume of the spheres. % copyright 2003-2023 Study.com. This is based on the equation .5mv^2=.5kx^2, where m is the mass of the duck, v is the velocity of the duck in the air, k is the spring constant of the spring in the base of the duck, and x is the displacement that the spring is compressed. PART I: Examining the Effect of Material and Mass on Thermal Energy Transfer <> lab kinetic energy edgenuity answers. These values were recorded, and the procedure was repeated two more times for a total of three readings. The analysis of these values showed that momentum is conserved in all collisions. The next condition tested was inelastic collisions. Ionic bonds form their bond when opposite charged ions in a chemical compound have an electrostatic attraction. Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass. stated britannica editor Erik Gregerson. In this experiment we will prove the conservation of energy by observing the interplay between kinetic and gravitational potential energy. In the presence of nonconservative forces (like __________), the total mechanical energy is not conserved. Apply the properties of kinetic and potential energy. In the presence of nonconservative forces (like friction), the total mechanical energy is, In the presence of nonconservative forces (like friction), the total mechanical energy is not conserved. The function Positon=404.289cm/s^2(t^s) + 44.450cm/s(t) +4.876cm was identified. These calculations illustrated the nature of momentum, and showed that momentum is always conserved. Allow the temperature to stabilize, and record this initial temperature to the nearest 0C Introduce the eight PH indicator strips in the eight . 3. m 1 < m 2 If m 1 < m 2, then v 1f < 0, which is to say that object 1 reverses direction. This was a result of miscommunication between group members that proceed to affect why the group had the lowest measurement of displacement. The first condition tested was elastic collisions. If you pick up a 10 N book a distance of 2 meters, how much gravitational potential energy did you . <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> The only compounds that are accepted as being 100 percent covalent are the chemical combinations that happen between two similar atoms.However if atoms are different in the compound it will present a certain percentage of ionicity in its, III. Two carts, that had already been weighed, were placed in the track. When the standard cart reached the plunger cart they collided, stuck together, and continued down the track with a new velocity. E. PART II: Examining the Effect of Material Type on Thermal Energy Transfer and Specific Heat Newton's second law says: Force equals mass times acceleration (F= m x a). A practices intracellular or extracellular digestion. One thing that, The purpose of the experiment was used to determine which team created a design that ultimately proved to launch the marshmallow the farthest. The electrical conductivity of the compound when it is dissolved in water can assist in classifying the compound as ionic or molecular. Wet sand 100 20 53 33. Record the exact mass in Table B. These results are shown in the table below.

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