Close the lid snugly and make sure the thermometer is immersed I made this because I was having to do all the research and I would've loved it, if someone had already done this. The fact that the kinetic energy ratio was very close to one shows that the kinetic energy is conserved in elastic collisions. 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. Let's start with GPE. Even thought Ionic bonds still hold molecules together, they are weaker than covalent. energy is also obvious, are known as elastic collisions. Examining the teeth of an animal can give d. Repeat Steps 4bc for 50 g of the steel wire. 2. ;18:/*wT$, Accuracy is how close the average of the measured values are to the actual value. The standard cart moved to a velocity of zero and was still. 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. The overall goal of this activity is to provide the students with a diagram that can help them learn and memorize the different characteristics associated with chemical bonding. kinetic energy lab questions. You'll be measuring the GPE of a ball 4 meters off of the ground and comparing it to the measured KE right before it hits the ground. Use a thermometer to check the hot water bath temperature, which should be near 100C This will serve as a backstop for launching the duck. The purpose of this lab is to test substances and to determine the physical and chemical properties of substances. The analysis of. We wrote down our data to prove that speed, height, and mass affect kinetic energy. the samples set for approximately 25 minutes. 100 g (least massive) If the slope was steeper on the graph, this meant that the cart had an increase in velocity. They were joined together by the Velcro, and the plunger was pushed into the plunger cart. Momentum (p) can be calculated by multiplying mass (m) by velocity (v) in the following equation. 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! The electrical conductivity of the compound when it is dissolved in water can assist in classifying the compound as ionic or molecular. with 300 mL of room temperature, add water to the calorimeter until you read 300 g of The cell membrane functions to protect a cell and to regulate the movement of molecules and ions into and out of cells. Energy that exists by virtue of an object's motion is called the Kinetic Energy. Ionic bonding is a crucial topic to understand within general chemistry reactions. Overall the total energy (_____________) is conserved. Measure the mass of the water in the calorimeter. The first condition tested was elastic collisions. Therefor elastic collisions can be defined as collisions in which kinetic energy is conserved. - Determine the energies involved for a free falling body The term Kinetic means an object in motion A Static object is one that is at rest (not moving). After the time has elapsed, record the actual elapsed time in the Tfinal column in Table A. Amanda has taught high school science for over 10 years. This is true because the value of the ratio of the momentum after to the momentum before was relatively close to one, or zero in the case of the percent difference for the momentum of the explosions. a. Record an initial temperature for each type of material The final condition tested was explosions. KE = KE = 2500 J 6. = Step 1: Gather materials. You'll need to measure the time from when the ball leaves your hand to exactly when it hits the ground. In elastic collisions the objects that collide do not stick together, and both continue on with new velocities after the collision. 1. The main objective of this experiment is to carry out qualitative analysis to identify metal cations in unknown solution 1. - h is the maximum height of the object relative to the level of reference chosen. If you pick up a 10 N book a distance of 2 meters, how much gravitational potential energy did you . Visit EdgePlus+ for a purchase key. Therefor all the momentum from the object that is initially moving will be transferred to the other object. What is your hypothesis (or hypotheses) for this experiment? - Explore the relationship between kinetic and gravitational energies, The m is the mass of the object and v is the velocity of the object in motion. The Photogate sensors were used to measure the velocity of each cart as it moved from the explosion site. Attached to the track were two Photogate sensors. These resources will help you complete the assignment. As the height decreases the GPE will decrease while its __________ increases. These results are shown in the table below. Steps. 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. Record this initial temperature for the three metal samples in Table B. (d) We cannot predict how the balls will move after the collision. Why or why not. C is a nutritional symbiont. Place a beanbag so it is centered on one end of the board at the target. If using one heat lamp, put the six cups in a tight 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. What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s? !HID63Ds "V~b,@Va>-_*k'j 5=iWm\dlzpIHD yT^mF,.:KL/sdCc6oE-fqV4pc:0eA 3qB Do this at least five times and take the average. Total score: ____ of 27 points (Score for Question 1: ___ of 3 points) 1. The word dichotomous comes from two Greek words that translate to "divided in two parts. program. Create an account to start this course today. Also! At the ___________ h, the object's GPE will be a maximum. 2 0 obj B. Another type of energy that we will study is called, gravitational potential energy (GPE) formula. This button released the plunger, and propelled both carts down the track in opposite directions. In this experiment we will prove the conservation of energy by observing the interplay between kinetic and gravitational potential energy. Kinetic Energy How Do the Mass and Velocity of an Object Affect Its Kinetic Energy? In the presence of nonconservative forces (like __________), the total mechanical energy is not conserved. As the data is representative of a graphical parabola, a parabolic function was utilized to be the best fit trendline. Repeat steps 5 and 6 for KNO3. complete other steps of the lab. Physics lab report 1 measurements; Thermal LAB Energy LAB Report; Doppler Shift SE Answers; 4.1.3f Does Light Angle Matter Gizmo Student Exploration Answer Key; Copy of Vectors SE - Gizmo for Feed the Monkey student exploration explore Learning for Physics Honors; Physics 4C Homework - 212; Kami Export - Gatsby Valleyof Ashes; Kami Export . Add water to the cup until the total mass reads 200 g. Repeat - Benefits, Foods & Deficiency Symptoms, Working Scholars Bringing Tuition-Free College to the Community, Investigate conservation of energy through measuring potential and kinetic energy. The raw data readings for the elastic collisions are shown below. The goal of the experiment was to identify the gravitational acceleration from the recorded distance(cm) vs time(sec) data of a fallen object. c. Coil the wire around a pencil or other object, or fold the wire tightly to create a more These ions attract each other and create an ionic bond. The conservation of momentum is a very important concept in physics. This would give the velocity of each cart. The fact that the kinetic energy ratio was very far from one shows that the kinetic energy is not conserved in explosions. All other trademarks and copyrights are the property of their respective owners. This allows for a more accurate measurement. Additionally, the lab will teach how to properly use Dynamic Tracks, which will be a valuable lab skill in the future. In the limit that m 2 m 1!1, v 1f! circle one The slight discrepancies in the values of initial and final momentum can be explained by some sources of error. Its like a teacher waved a magic wand and did the work for me. 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. 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. Swirl the thermometer slightly, and confirm that the thermometer is well within the water. 13 chapters | 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! This button released the plunger, and propelled both carts down the track in opposite directions. 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. Science | Graded Assignment | Lab Report | Elasticity Name: Keli Parks Date: 8/14/2022 Graded Assignment Lab Report: Elasticity Answer the questions below. Enrolling in a course lets you earn progress by passing quizzes and exams. calorimeter into a beaker or other secondary container to prevent wobbling. Other researches had similar data but were never exactly the same. Discussion: The Work/Energy Equation says "The work done on an object by the net force on it equals the object's change in kinetic energy." or, in symbols: I'm not able to just leave it out in the public since Reddit will take it down because of copyright, lol. Record this in your notebook. cup, allow the reading to stabilize. >> For observation 2 add. . SOLUTION: Kinetic Energy Student Guide Lab Report - Studypool The first Photogate sensor measured the velocity of the standard cart, and the second Photogate sensor measured the velocity of the plunger cart. If you have been keeping score of your answers, you can always dm me the link and I'll add it to the Google Drive Edgenuity Files. Lab Handout Lab 13. 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. This would force the carts to stick together after collision. Enjoy!! I'm remaking this, so it'll be more coherent. Acceleration is an objects increase in velocity. We'll study two main types of energy today. What is its volume at s.t.p.? The function Positon=404.289cm/s^2(t^s) + 44.450cm/s(t) +4.876cm was identified. Repeat step 2 three times and average the times together. stream Be aware that your course may or may not be on the file. Measure the height from which you'll be dropping your tennis ball. Allow the temperature to stabilize, and record this initial temperature to the nearest 0C 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 (_________). Try to let We traded experiments and materials with another group, so each group got a chance to watch an unbiased group perform their experiment. 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). 2. Then remove the .75m desk and place it on the ground. If that ball rolls down the hill however, all the GPE is converted to KE when it gets to the ground and is moving fast. If a person riding a bike has a mass of 200 kg and is moving at a velocity of 5 m/s, what is their kinetic energy? If you measure it in grams, simply divide the number by 1000 to get kilograms . These values were recorded, and the procedure was repeated two more times for a total of three readings. Place the calorimeter (no lid) on the balance and tare the balance. Kinetic Energy Lab Report Speed, height, and mass do affect kinetic energy. Table A: The Effect of Mass or Material Type on Thermal Energy Transfer. Precision is the closeness of repeated measurements. The kinetic energy before and after the system was then computed using the above kinetic energy equation. energy in the earth system part 1 unit 4 heat and. Record these guesses in Table A. This would force the carts to stick together after collision. Organismic Lab Lab1- Dichotomous Key Introduction A dichotomous key is a series of paired statements or questions that are used to categorize organisms with their similarities in characteristics and or structure. For instructions on how to get a purchase key and activate your EdgyBot, visit Visual Instructions Steps for use: Install this script using tampermonkey. KE = mv2 KE = ? The Great Depression and the New Deal How did the New Deal affect minorities in the United States (African Americans, Hispanics, etc.) I have a template, that is simple and clear to understand. Privacy Policy. heated aluminum wire from the hot water to the calorimeter using the tongs. Did your experiment follow the law of conservation of energy? 4 0 obj This allows you to get a more accurate answer. Newton's second law says: Force equals mass times acceleration (F= m x a). a. Joule (J) 4. temperature change, T, for each sample. Record all data in Table A, and calculate the Dry sand 100 19 63 44 - Uses, Types, Examples & Side Effects, What Is Methadone? Now find KE. 4 times more 4 times less She is also certified in secondary special education, biology, and physics in Massachusetts. '%30r85. The lamp bulb should be positioned over the cups Upon graphing the data, the best fit line was identified in order to find the formula of the function. Explore different tracks and view the kinetic energy, potential energy and friction as she moves. When these ion separate, its called dissociation. Key points: When you leave the EdgyBot to do work by itself, you need to stay on the same tab. b. endobj Collisions occur when two or more objects collide, and can be either elastic, or inelastic. In this lab this was analyzed in multiple collision situations. Theology - yea At the maximum height, __, the object's GPE will be a maximum. One atom borrows one or more electrons from another atom. CLEANUP : Leave the test tube with wax stuck in it in the lab station. Course Hero is not sponsored or endorsed by any college or university. compact mass. . Lab: Kinetic Energy Assignment: Lab Report 1 See answer Advertisement zlskfrum Answer: Explanation: In this lab, two pieces of rock, one big one small, are dropped from the same height onto mud. After the lab was over this data was analyzed using the equations above to give the following values. Since it's still and high up, the object only has GPE. The sums of the multiples of each balls mass and velocity before and after the collision should be equal as is shown in the above equation for the conservation of momentum. In class we learned about the principles of acceleration, time, and velocity. Typically an ionic bond occurs between one metal and one non-metal ion. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. The conservation of the energy is happening in the presence of conservative forces like gravitational forces or the _____________. Explain your reasoning: Which samples will heat up faster? 1. Complete the conversations by choosing the more logical verb in parentheses and writing it in the preterite. ANSWER Step 5: Set Up the Titration a) Turn the cockstops off. Ionic bonds form their bond when opposite charged ions in a chemical compound have an electrostatic attraction. mL cylinder to the beaker on the stir plate and empty it into the beaker. Aqueous solutions are solutions that water is solvent. In a car, the chemical energy stored in the gasoline is released when it is burned in the engine; that chemical energy is ultimately converted to kinetic energy and results in the motion of the car. and securely tape the cylinder to the board with the packing tape. Not because your TA says to do so, but because it adds depth to your discussion. The volume is determined by measuring with a ruler and by water displacement. For more information, please see our 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. Assume that the velocity of the soda bottle falling from a height of 0.8 m will, be 4 m/s. dumping the sample into the calorimeter. What are the units for kinetic energy? c) Put a clean, dry stir bar inside a clean, dry 50 mL Erlenmeyer flask. PART I: Examining the Effect of Material and Mass on Thermal Energy Transfer Using a 500 mL beaker This includes knowing the displacement, velocity, and acceleration of objects. program. xnd r `v^5CHQTuUs3$"@NlvU|ss?t%DnVRB\V?D?vXo"Kb-dYoLD7ee~QNm4V]K = w]SYx,yR"LT5IF}D7UGZM]|hSaZma zmQG_U8H#"hP NwZGjvm2_'iT0jU!nehu#K"BF(C9B:6^fiO-ZzVCW^DF;l*=)q`D-ef1FG2LmQ}WBzP+/]3G^5LL2 m)f3d#Xa. $w|ufkcH2n&t&a/ugRVx\!K'h"JpLl8TL*{[;44,raD$;KI8=Hv8}0mIk|pHZ]$;qYV`z|P%;p2MUrn^Cw&5ZORZ%mqj*Bk>K"*;K4 E,~#|4 tfgZdzrW$2d\X-KycA*H=`Fho*=ct) 5:Gq7:uXvyw(Sp)T.$;-Q-9LFCZYnl,F9.H"}/wQt#81K~JZcw The values of the momentum ratio are very close to one which indicates that the momentum is conserved in the experiment. These results are shown in the table below. Dry sand 200 19 40 21. QUESTION: How do mass and the type of material affect thermal energy transfer? So why would KE and GPE be different? f. Make a hypothesis about which set of sample mass, the 200 g or 100 g, will heat up the Today, we're going to see how this plays out in the real world. Whenever an object moves, some energy is converted to heat through friction. Additionally the lab taught how to properly work with 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. temperature. When the standard cart reached the plunger cart they collided, but did not stick together, and the plunger cart moved down the track. The standard cart was pushed towards the plunger cart, which was at rest. a. Current I1=2.50AI_1=2.50 \mathrm{~A}I1=2.50A. A. We used the equation Y=mx+b, in order to compare the velocity of each trial by comparing the slope and the y-intercept. Fill close to the 0 mL line but not higher, or you will not be able to measure volume accurately. (b) The balls will move to the left because p2>p1p_2>p_1p2>p1 before the collision. 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. The first Photogate sensor measured the velocity of the standard cart, and the second Photogate sensor measured the velocity of the plunger cart. " In a Dichotomous key each step has two . Measure 200 mL of water with the graduated cylinder and transfer it to an. We can monitor the rate at which a chemical decomposes or the rate at which a chemical substance appears. The ratio of the final momentum to the initial momentum was calculated for all conditions except the explosion. The Logger Proprogram was set up so that it would collect the Gate Time from each Photogate sensor. 1. 4. endobj When the standard cart reached the plunger cart they collided, stuck together, and continued down the track with a new velocity. 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. Later, one piece of rock is dropped from different heights and hole made measured. Raise the thermometer and lid off the calorimeter, and carefully transfer the bundle of In this lab, we'll be studying the principle of conservation of energy. We can say that one form of energy (potential energy) is converted in another form of energy (kinetic energy). This could have caused the velocities to be slower than they should have been because there was a velocity due to the friction. If you have access to a supervised laboratory, do Part A. a. There are multiple possible sources of error in this experiment. /Filter /FlateDecode Start a timer or note the time on a clock. <> Seminar assignments - Problem set 1 - 13 including answers; College communication worksheet Baker,L; PHYS221 Lab Report Template 4 - Coefficient of Friction; PHYS207 Lab Report Template 2 - Vectors; PHYS207 Lab Report Template 8 - Harmonic Oscillation and the Physical Pendulum; PHYS207 Lab Report Template 1 - One Dimensional Kinematics The equation for GPE is mass multiplied by acceleration due to gravity, multiplied by height: Acceleration due to gravity is always 9.8m/s2; however, it is acceptable to round this to 10m/s2 for easier calculating. of tape at these points to serve as targets. Where: Lesson: Types of Chemical Reactions, Project: Thermal Energy and Chemical Reactions Students apply knowledge of technological design, as well as techniques of project-based learning in order to investigate the relationship between chemical processes and the release of thermal energy. Time can vary slightly as needed to these samples. If the cart maintains at a constant speed, then the cart will have an increase in acceleration. From this point, let Kinetic energy (KE), the energy of movement, and gravitational potential energy (GPE), or stored energy due to height. of wire and water reach an equilibrium temperature (the water temperature stops Build your own tracks, ramps, and jumps for the skater. Dry Sand Create your account. Measure the mass of your ball on the balance. the total energy in the system will not change. endstream endobj 500 0 obj <>stream Wet sand 100 20 53 33. Go to pages 5 to 7 of Assignment Booklet 2B and answer questions 10 to 15. When collisions occur, two properties of the colliding bodies are changed or transferred: their Energy and Momentum. d. Remove the aluminum wire sample and empty the calorimeter. B is a filter feeder or a detritivore. In this lab this was analyzed in multiple collision situations. Objectives (3): - Explore the relationship between kinetic and gravitational energies - Analyze the importance of kinetic energy in falling objects.

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