lab kinetic energy assignment lab report edgenuity answer key

From this point, let Half-Life Data-Teacher Answer Key 1.Hypothesize what halflifeis: Halflife is the amount of time it takes for approximately half of the radioactive atoms in a sample to decay intoa more stable form. In the limit that m 2 m 1!1, v 1f! At the __________ the potential energy is considered equal. introduction this section should provide In our lab work, we had to do multiple tests by dropping a can onto a clay ball. 5. At the level of reference the ____________ is considered equal. The values of the velocities were shown on the Logger. Next, we need to do some calculations to find GPE and KE. copyright 2003-2023 Study.com. A 50 kg person falling at 10 m/s would have kinetic energy. Momentum (p) can be calculated by multiplying mass (m) by velocity (v) in the following equation. /Length 2645 3 0 obj As the height decreases the GPE will decrease while its kinetic energy ____________. mass. d. Remove the aluminum wire sample and empty the calorimeter. Its like a teacher waved a magic wand and did the work for me. Do this at least five times and take the average. Lay the board on its midpoint across the 2 diameter cylinder. at a height of 10 cm from the materials. The next condition tested was inelastic collisions. Explore the relationship between mass, speed, and kinetic energy using a laboratory Hypothesis #1 If the mass of an object increases, then its kinetic . No items have been added yet! Go to pages 5 to 7 of Assignment Booklet 2B and answer questions 10 to 15. The conservation of the energy is happening in the presence of ____________ like gravitational forces or the force in a spring. Because momentum is conserved we can state that the final momentum of a system is equal to the initial momentum of a system in the following equation. These ions attract each other and create an ionic bond. This is the lab data explained. A. Two carts, that had already been weighed, were placed in the track. <> Additionally, the lab taught how to complete momentum calculations, and the law of conservation of momentum. Considerations: These are not questions to be answered as a separate part of the lab report. Water 200 20 30 9. The temperature of the metals should have reached the same sample. These values were recorded, and the procedure was repeated two additional times for a total of three readings. 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. This friction converts some of the energy of the ball into heat, making the value measured for KE less than expected. The energy stored in an object while at rest in a gravitational field. This proved that momentum is in fact conserved. Simply put, his law describes the relationship between the mass of an object, the acceleration of an object, and the force needed to move it. ;18:/*wT$, The analysis of the results of this experiment shows that momentum was conserved in all types of collisions. Acids and bases are carefully regulated in the body by the lungs, blood, and kidneys through equilibrium processes. There were no controlled variables used in this experiment. In inelastic collisions kinetic energy was not conserved because the value of the ratio of initial and final kinetic energy was not close to one. If you measure it in grams, simply divide the number by 1000 to get kilograms. Where: So why would KE and GPE be different? The analysis of these values showed that momentum is conserved in all collisions. At the maximum height, __, the object's GPE will be a maximum. PART I: Examining the Effect of Material and Mass on Thermal Energy Transfer Describe the three different types of bonds, providing examples of molecules formed through each type of bond. So, now that it's made, I hope it helps a lot of people to get work done especially if they're really behind! They then continue on together with one final velocity. These equations are as follows: The purpose of this lab was to test the relationship between velocity, position and time. We can say that one form of energy (potential energy) is converted in another form of energy (kinetic energy). KE = KE = 2500 J 6. e. Remove the steel wire sample and empty the calorimeter. As the data is representative of a graphical parabola, a parabolic function was utilized to be the best fit trendline. However, the analysis of kinetic energies proved that kinetic energy is not always conserved. Lab #6 - Work-Kinetic Energy Theorem Therefore, if the work done by a particular force appears not to be equal to the change in kinetic energy of the object, then the system should by analyzed for possible work (positive or negative) done by other forces. (b) The balls will move to the left because p2>p1p_2>p_1p2>p1 before the collision. D is a herbivore or a carnivore. The slight discrepancies in the values of initial and final momentum can be explained by some sources of error. ,&xZxH|4"z$/Ku%|*62817t>|f'JMnPu/n_zrf~!)r^Vv<3#il4ZI[iiR!hri.#)DnnSpaFKz?WIVFRE7d/~ q|d. Student Guide (continued) a) Place the lid on the calorimeter, and insert the thermometer. Then you can change the height of by adding a .75m desk on top of the .95m table. 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This increase can be explained by the fact that the potential energy of the spring, that was holding the plunger back, was transferred to kinetic energy as the plunger was released. Drag the beaker to the red disposal bucket. Repeat Steps 68d for the lead if the water bath is boiling. I have a template, that is simple and clear to understand. 1. hd The _____________________ is the change in mechanical energy, In the presence of nonconservative forces (like friction), the total mechanical energy is not conserved. other two cups, filling one with 100 g of wet sand and one with 100 g of dry sand. The work-kinetic energy theorem states that the change in the kinetic energy of a particle during a displacement is equal to the work done by the resultant force on the particle during this displacement. In this lab, the possibility of experiencing sources of was extremely high as pushing a car and calculating the acceleration easily invited interference in otherwise perfect results. Kinetic factor refers to DGa, activation energy; while the thermodynamic factor refers to DG =G 2-G 1, the driving force. energy is also obvious, are known as elastic collisions. We wrote down our data to prove that speed, height, and mass affect kinetic energy. Repeat the process of data collection at least 5 times and take the average. Measure the mass of your ball on the balance. % kinetic energy lab report edgenuity answer key, energy homework answers, energy transformations edgenuity answers. The final momentum for each condition was calculated using the following formula. Covalent bonding is a root within Organic and Biochemistry that needs to be understood in order to fully understand the theories and concepts discussed in both forms of chemistry. program the reading from the first sensor was the initial velocity of the standard cart, and the reading from the second sensor was the final velocity of both carts. Edgenuity Answer Key! These sources of error include human error such as not keeping the acceleration constant, changing the force placed on the van, and by starting or stopping the timer late. Step 2: Note State and Appearance. c. The three material types should be room temperature, but place a thermometer in each Assume that the velocity of the soda bottle falling from a height of 0.8 m will, be 4 m/s. then place a thermometer in each cup and observe the readings until they do not climb = . Allow the temperature to stabilize, and record this initial temperature to the nearest 0C As usual, you should refer to, 1. If you do not have . Kinetic Energy Lab Report Edgenuity Answers. Write the goal of the lab or the question you tried to answer. As the height decreases the GPE will ________ while its kinetic energy increases. The initial velocity of the standard cart and the final velocity of both carts, moving together as one, were measured using the Photogate sensors. One cart was a standard cart with a rod on top. When the standard cart reached the plunger cart they collided, stuck together, and continued down the track with a new velocity. After the lab this data was analyzed using the momentum equations above to give the following values. Every radioactive element has a different halflife. K. Transfer metal samples to the calorimeter and measure the temperature change. They should start immediately when you drop it and stop it exactly when it hits the ground. 1001 LAB 3: CONSERVATION OF ENERGY 1001 Lab 3 2 which is called the kinetic energy of the ball just before it hits the ground. I would definitely recommend Study.com to my colleagues. 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At the level of reference the potential energy is considered ___________. These results are shown in the table below. The ratio of the final momentum to the initial momentum was calculated for all conditions except the explosion. touching the materials to assess their thermal energy. The other cart was a plunger cart, which contained a spring activated plunger that could push the carts apart. F"361:~Sx~(1 3a1Hf!&%d~~Iy9ed*0|bc_.Q|Akh'Se& fOr)/x If you want to start doing an Answer Key too! 498 0 obj <>stream Suggested Answers 1. This button released the plunger, and propelled both carts down the track in opposite directions. An ionic bond is a type of chemical bond that occurs when one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion, which then result in attraction. circle, each equidistant from the lamp. 1. Place the calorimeter (no lid) on the balance and tare the balance. Energy can be converted from one form to another (potential energy can be converted to kinetic energy) but the total energy within the domain remains fixed. This equation can become a powerful tool when analyzing all types of collisions. Steps. Then remove the .75m desk and place it on the ground. Wet sand 200 20 37 16. dumping the sample into the calorimeter. 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. Therefor inelastic collisions can be defined as collisions in which kinetic energy is not conserved. In the presence of _____________ forces (like friction), the total mechanical energy is not conserved. Introduction: Chemical reactions are dependent upon two factors: temperature and concentrations of substance. energy that spontaneously passes between a system and its surroundings in some way other than through work or the transfer of matter. To begin the lab a Vernier Dynamic Track was set up and leveled on a table. Understanding of DG =G 2-G 1, the driving force A thermodynamically favorable reaction or process means DG < 0, that's to say, highly driven! Although there will be less friction than sliding it across a rough table, it's still there. 1. This would force the carts to stick together after collision. Once you have created your file (s) and are Q&A A rescue diver of mass 89 kg jumps from a hovering helicopter into the ocean 20 meters below. This is because of the law of conservation of momentum. increasing). 3. m 1 < m 2 If m 1 < m 2, then v 1f < 0, which is to say that object 1 reverses direction. Kinetic energy (KE), the energy of movement, and gravitational potential energy (GPE), or stored energy due to height. You might think there is no friction in the air, but air is actually made up of millions of tiny gas molecules. Then push the duck so it is compressed and is going to launch horizontally . a. Call down to your partner when you're going to drop the ball and let them use the timer. 1. Place the strainer and lead in the hot water bath. Ionic bonding is a type of chemical bond formed between two ions with opposite charges. Enrolling in a course lets you earn progress by passing quizzes and exams. F. Be sure to wear protective gloves when handling all metal samples! This includes knowing the displacement, velocity, and acceleration of objects. In this experiment, we will collect data on velocity, speed, and time. As the height decreases the _________ will decrease while its kinetic energy increases. Kinetic Energy Practice Problems 1. 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Read through the scenarios below and calculate the predicted change in kinetic energy of the object compared to a 50 kg ball traveling at 10 m/s. We can say that one form of energy (potential energy) is converted in another form of energy (kinetic energy). endobj They were joined together by the Velcro, and the plunger was pushed into the plunger cart. <>>> Measure the mass of your ball on the balance. Total score: ____ of 27 points (Score for Question 1: ___ of 3 points) 1. 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! of wire and water reach an equilibrium temperature (the water temperature stops THERMAL ENERGY TRANSFER LAB GUIDE || Edgenuity Portfolio Guide Only Science Simply Explained by Ivy Alefante 138 subscribers Subscribe 37 Share Save 1.2K views 1 year ago This video is only a. >> However, when the group was compared to other groups conducting the same experiment, the displacement of their marshmallow was the shortest. calorimeter into a beaker or other secondary container to prevent wobbling. These results are shown in the table below. kinetic energy to object 2. Once you have created your file(s) and are, An aircraft weighing 18785 N returns to the aircraft carrier and lands. G. Establish an initial temperature of the metal samples. 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