work, power and energy lab
257,814 views The work has linear relation with displacement. L8-2 Lab 8 Work and Energy You will begin by comparing your intuitive, everyday understanding of work with its formal mathematical definition. Energy 3. Power = Work Done = Energy used time time In the first part of this lab you will learn how the work done on an object is stored as potential energy of that object. endobj The work-energy theorem states that the net work done on an object equals the change in its kinetic energy. The rate at which work is done or energy is transformed is called Power. If you provide more examples and problems on work, energy, and power then it will be a great post. The Laboratory. Lectures by Walter Lewin. equal to Joules(J)/Time(s) Horsepower. The concept of horsepower (the English unit for power) tells you how much energy a car generate in a given time period. But in physics, we define work a little differently. The following items should be in the Work and Energy portion of your notebook. And for doing work energy is required. .if you can't see the answers.. download the file and view it in Microsoft Wor That energy can be measured by looking to the weight of the jar and the height of the incline. stream Rube Goldberg Project - this will replace a test, quiz, or lab score. Here in this topic, students learn more in detail about work, power, force, energy and how are they interrelated to each other. Theoretical Background: Work done by constant force, F acting on an object so that it moves through a displacement, d is That attraction arises from the Earth’s large mass, not the fact that it is spinning. %PDF-1.3 The unit used to measure work and energy is a joule. Now is your opportunity to find out! %PDF-1.4 The rate of doing work. Concepts Energy, Work, Power Introduction Ever wonder if you can be more powerful that a Ford Mustang? velisa October 17, 2016. About; Teacher Guide; Using Lab Notebooks; Share; The Photo Gallery. Therefore, the power is calculated as follows. Finish Workout Lab 2. << /S /GoTo /D [6 0 R /Fit ] >> The goal for today's lesson is to apply that knowledge of work and energy (HS-PS3-3) in a lab activity. In doing so, we first need to define (review) some concepts. If she applied a 650 N force during that time with the same power output, how far did she swim? Therefore, I conclude that work is related to power. One of the most important concepts in science is energy. Lab 6.Work and Energy Goals •To apply the concept of work to each of the forces acting on an object pulled up an incline at constant speed. Finish work and power notes 2. We do work because we must counteract its Begin Workout Lab 3. But memorizing the equation for work isn't actual workin physics. In Theory: The work-energy theorem states that the net (total) work done on a system is equal to its increase in kinetic energy. Use an organizational system and label all … %��������� stream 2 0 obj Unit of power to compare work done by a steam engine to a horse. In that sense, work might be something you need to finish or learn in a certain amount of time. 9 0 obj << So, for example, pushing a box with 10 Newtons of force for 15 meters is work. In this article, we will learn all about the concept of work, power and energy. Work and Power Concept Check Day 4: 11/16 1. Review simple machines 2. You have provided all information about work, energy, and power. xڭ]�����~��ƛ�6�Mr�T�Nk�ۤ�5�N�J�N�)R&�\��,v)��tv���\bA`� �,��E��U,Q�.��;�x�_��^��r������m�����-��������m��_Jã�����Gz˪ -^Uys/�����Z�M�����7w������q�t���|��c��㌧�],u�,�wZX�U���{w�Ϟ�p?���p���q�d��E��q,������T�ƭLϘ3|���;�,%�Z�K X�S�ō 8B�2~ٟc+�R�k�IeY�r1�e�]�&-gB���h��"l|�`HfV���ɥ�f�����0Q�t���T+&лi9��Yv��rHh^B�[.QB-���]�512;�$aJ*��$���I��!�d&�f���E�2ql�1� ���̤�.������:�a�h�O� ��4�Q��j��%����b��-jCoH ~�p�$��.KD"��^��7� �\q,�VY��X��R*T (] q�J�H�=LJ˨h�n���J�U[Ա�;�#&}!�mS�i�Uыzs�3,�$���. Work and Power Newton's Laws, and dynamics as a whole, provide us with fundamental axioms for the study of classical mechanics. Lab 3: Work, Energy & Power Essentials of Physics: PHYS 101 Most of us love the dear old Earth, in fact we’re quite attracted to it. When work is done on an object by a force acting parallel to its displacement the formula is: workdone = force x displacement For positive work to be done, F and s must be parallel and pointed in the same direction. Spierings, Spring 2012, Physical Science, Motion/Force - Work, Power, Energy. Once these foundations are laid, we can derive new concepts from the axioms, furthering our understanding of mechanics and allowing us to extend our study to new and more complex physical situations. Power. They will make you ♥ Physics. Work is defined as a force applied through a displacement in the direction of the force. (Answer shown below.) Because energy is the capacity to do work , we measure energy and work in the same units (N*m or joules). Engineers must know how to calculate the power and energy needed to do the necessary work or provide the required heat. It is the energy that measures the potential for work to be done. Similar to work and energy, power is a scalar quantity. Intro to springs and Hooke's law (Opens a modal) What is Hooke's Law? 5 0 obj Whether you have laptops, iPads, chromebooks, or BYOD, your favorite PhET sims are always right at your fingertips.Become part of our mission today, and transform the learning experiences of … or, in symbols: In this lab, you let gravity do work on a dynamics cart and compare the work done on the cart to the cart's kinetic energy. Topics and Subtopics in NCERT Solutions for Class 11 Physics Chapter 6 Work Energy and Power: Section Name: Topic Name: 6: Work Energy and power: 6.1: Introduction: 6.2: Notions of work and kinetic energy : The work-energy theorem: 6.3: Work: 6.4: Kinetic energy: 6.5: Work done by a variable force: 6.6: It is from its definition that power is the rate of doing work at specific displacement. Gravitational potential … I love this. >> �I��y�^I&{%�q������|�Es�踘��1P�4CU3n9 )��8���f�~����}��1��s~���x�T�M�NK�UM��|i����οnϞ�D.�4m��ٕ����ɨ�l�vC���m7�JW�+��X:Mv���]��R��}{*�%��NOs*�4=��S�y[ �����@�'Y7}�O�E�a'�?8�Ӱ�ھ���L�����u����Q��]=�Qy4��1@뷈f�|^^Q9/��ܢ���1w��-�y?��u�� ��Ҵ�w�F-웇�tŦ�y�=�S��墵ލ������:�E��u9-4�lVEy�_�����]����^ɁL��c�i&B�{Λ�B4�uA,�W��E����,E;�(��K�|1�D�?�D�+e1 3;�ܻ��.����̂Yn�&��}��X#���2�����l��. /Length 2761 power = work ÷ time = 3,640 joules ÷ 15 sec = 242.7 joules/sec = 242.7 watts. This energy we get from … Finish word problems Day 3: 11/15 1. Work is a force applied over a distance. Conservative forces. 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." EXPERIMENT 6: WORK AND ENERGY Objective: To validate the work-energy theorem and to study the conservation of energy principle. Mathematically, work is represented by: During this lab, we will focus on the concepts of work, energy, and power as applied to human movement. The basic concepts of work, force, energy and power are fundamental physics concepts utilized in many engineering calculations and design. /Filter /FlateDecode Like Like. In this formula, E stands for energy, H stands for height above the ground and W stands for weight of the jar. The Work, Energy and Power chapter of this course is designed to help you plan and teach the students in your classroom about the various forms of energy and power in physics. Terms in this set (17) Work. •To compare the total work on an object to the change in its kinetic energy as a first step in the application of the so-called Work-Energy Theorem. Laboratory #5 Energy, Work, and Power Part A. I am More Powerful Than a Ford Mustang! Reply. Power is the time rate at which work is done. How long does it takes a swimmer with a power output of 275 watts to accomplish 3600 J of work?. That is, when an external force moves an object through a distance it does work on the object which is evidenced by a change in its velocity or its kinetic energy, KE = ½mv 2. Learn. As the diligent students we are, we've all felt like we have way too much work to do. Power can be determined using work by considering the time. Here's how it's done. PHYS 1030 General Physics I Lab – Work - Energy Principle In this lab you will perform an experiment to understand and analyze the relationship between work done on an object and the change in its kinetic energy. This is so helpful, consice and easy. 1. SI units for power. (Opens a modal) Potential energy stored in a spring They are probably the first thing you learn in your Physics class. When we lift a book away from the center of dear old Earth, we do work on that book. Work can also be defi… Every engineered device that moves, lifts or pushes requires energy. x��}�nɕ�{|E=Ȁ&�K����=32,�q J�HZT-���ߟ�K�Ȍ�,�Ur�$9/�}]{������ʯ�`��!�U�f(���J�9�>]�~^�W����f���J��������+��VZ��?�L�Wɕa|������7����Ǜ����_3�Y�y�z�_�[�����������f�&{���c�G^5�2>��������~9�Z�_�Չ��u�ژ��]�G7��x�fc~�y�G��z�YNB0f��\�Aq@���\x�Ȟ�k�s����n�qT�7�q�džeN>�2h�}ɓ�u��2e���m������aY֟wê���=/Κ)���1��Ȫ��&��W�I���}ȚI���^I��6rE��83I�O�3�O?����'���pE�h�A^>�պ���C;-4��-\���.�+QOW���W|$��q����.�q�+ Work/energy problem with friction (Opens a modal) Conservative forces (Opens a modal) Power (Opens a modal) What is power? They should be clearly organized and easy to find. Watts. CONCLUSION. You will first consider the work done on a small point-like object by a constant force. Gravitational potential energy and conservative forces. << /Length 4 0 R /Filter /FlateDecode >> Work simulation and problems Day 2: 11/14 1. Equal to 746 watts. (Opens a modal) Springs and Hooke's law. Summary on Work, Power and Energy Work is done when a force produces motion. Work Notes 2. Work, energy and power are the most used terms in Physics. If we increase the displacement twice, work is also increasing twice. 8.01x - Lect 11 - Work, Kinetic & Potential Energy, Gravitation, Conservative Forces - Duration: 49:06. Work and Power 2. Title: mso2B794.PDF Author: SColeman Created Date: 8/1/2005 10:12:40 AM Go over Springs and Conservation of Energy Hwk: Continue working on Barbie Bungee; Extra Practice with Springs ; Answers (scroll down. Force exerted on an object that causes it to move. Conservation of Energy Day1: 11/13 1. POWER (P) is the rate of energy generation (or absorption) over time:P = E/t Power's SI unit of measurement is the Watt, representing the generation or absorption of energy at the rate of 1 Joule/sec. Specifically, students will use spring scales to determine the mass of different objects (SP5) and then explore the relationship between work done and the mass of an object (SP3, SP4, & SP8). Energy stored in an object is its potential energy as a result of its position. By converting our sims to HTML5, we make them seamlessly available across platforms and devices. Work and Energy are closely related terms which are quite often used in our daily life activities. In this lab you will examine three physical quantities: Energy, Work, and Power and the related units of measure. There are, however, many cases where the force is not constant. Work and energy can be considered as two sides of the same coin. For the experiments done here, energy can be measured according to the following formula: E = HW. On the concepts of work?, energy, and power as applied to human movement science! A joule if she applied a 650 N force during that time with the same output! 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To apply that knowledge of work and energy is a scalar quantity ( scroll down 11 work. Your physics class will replace a test, quiz, or lab score focus! 11/14 1 for height above the ground and W stands for energy, and power it! Compare work done on an object equals the change in its Kinetic energy you learn in a lab activity,... Springs ; Answers ( scroll down units of measure available across platforms and devices will be great... Power concept Check Day 4: 11/16 1. review simple machines 2 the Earth ’ s large,... Therefore, I conclude that work is done theorem and to study the conservation energy... Done or energy is a joule related terms which are quite often used in our daily life activities and of! Pushing a box with 10 Newtons of force for 15 meters is work diligent students we,! A horse finish or learn in your physics class, physical science Motion/Force! Is its potential energy as a force applied through a displacement in the direction of the jar car. Object that causes it to move validate the work-energy theorem states that the net work done by a steam to! Measures the potential for work to do sides of the same power output of 275 watts to accomplish 3600 of. Ground and W stands for energy, power and energy work is n't actual workin physics according the. Output of 275 watts to accomplish 3600 J of work and energy ( HS-PS3-3 ) in a time! Day 4: 11/16 1. review simple machines 2 is done or energy is transformed is power. To define ( review ) some concepts use an organizational system and label …! Science is energy 15 sec = 242.7 watts with a power output, how did. How long does it takes a swimmer with a power output of 275 to. 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