Mathematically, work is represented by: 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. The concept of horsepower (the English unit for power) tells you how much energy a car generate in a given time period. Conservative forces. The work has linear relation with displacement. In If she applied a 650 N force during that time with the same power output, how far did she swim? .if you can't see the answers.. download the file and view it in Microsoft Wor Gravitational potential … 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: When we lift a book away from the center of dear old Earth, we do work on that book. 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. (Opens a modal) Springs and Hooke's law. It is from its definition that power is the rate of doing work at specific displacement. L8-2 Lab 8 Work and Energy You will begin by comparing your intuitive, everyday understanding of work with its formal mathematical definition. << /S /GoTo /D [6 0 R /Fit ] >> This energy we get from … Reply. Power can be determined using work by considering the time. Use an organizational system and label all … If we increase the displacement twice, work is also increasing twice. Go over Springs and Conservation of Energy Hwk: Continue working on Barbie Bungee; Extra Practice with Springs ; Answers (scroll down. Work/energy problem with friction (Opens a modal) Conservative forces (Opens a modal) Power (Opens a modal) What is power? It is the energy that measures the potential for work to be done. So, for example, pushing a box with 10 Newtons of force for 15 meters is work. Because energy is the capacity to do work , we measure energy and work in the same units (N*m or joules). Power. •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. equal to Joules(J)/Time(s) Horsepower. If you provide more examples and problems on work, energy, and power then it will be a great post. stream The following items should be in the Work and Energy portion of your notebook. We do work because we must counteract its Like Like. How long does it takes a swimmer with a power output of 275 watts to accomplish 3600 J of work?. Intro to springs and Hooke's law (Opens a modal) What is Hooke's Law? In that sense, work might be something you need to finish or learn in a certain amount of time. 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). %PDF-1.4 In this lab you will examine three physical quantities: Energy, Work, and Power and the related units of measure. (Opens a modal) Potential energy stored in a spring 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. SI units for power. The basic concepts of work, force, energy and power are fundamental physics concepts utilized in many engineering calculations and design. /Filter /FlateDecode In doing so, we first need to define (review) some concepts. Spierings, Spring 2012, Physical Science, Motion/Force - Work, Power, Energy. 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. The Laboratory. In this formula, E stands for energy, H stands for height above the ground and W stands for weight of the jar. (Answer shown below.) 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. �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��. About; Teacher Guide; Using Lab Notebooks; Share; The Photo Gallery. Work Notes 2. Every engineered device that moves, lifts or pushes requires energy. 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." Power is the time rate at which work is done. 257,814 views 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. That attraction arises from the Earth’s large mass, not the fact that it is spinning. Work is defined as a force applied through a displacement in the direction of the force. Work and energy can be considered as two sides of the same coin. EXPERIMENT 6: WORK AND ENERGY Objective: To validate the work-energy theorem and to study the conservation of energy principle. Therefore, I conclude that work is related to power. Gravitational potential energy and conservative forces. velisa October 17, 2016. As the diligent students we are, we've all felt like we have way too much work to do. For the experiments done here, energy can be measured according to the following formula: E = HW. Learn. There are, however, many cases where the force is not constant. Energy stored in an object is its potential energy as a result of its position. Work and Energy are closely related terms which are quite often used in our daily life activities. 9 0 obj << By converting our sims to HTML5, we make them seamlessly available across platforms and devices. 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. 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. The goal for today's lesson is to apply that knowledge of work and energy (HS-PS3-3) in a lab activity. Similar to work and energy, power is a scalar quantity. Watts. They will make you ♥ Physics. But memorizing the equation for work isn't actual workin physics. During this lab, we will focus on the concepts of work, energy, and power as applied to human movement. 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�+ They should be clearly organized and easy to find. << /Length 4 0 R /Filter /FlateDecode >> Work is a force applied over a distance. You will first consider the work done on a small point-like object by a constant force. Force exerted on an object that causes it to move. The rate of doing work. The work-energy theorem states that the net work done on an object equals the change in its kinetic energy. Engineers must know how to calculate the power and energy needed to do the necessary work or provide the required heat. Equal to 746 watts. power = work ÷ time = 3,640 joules ÷ 15 sec = 242.7 joules/sec = 242.7 watts. Work, energy and power are the most used terms in Physics. They are probably the first thing you learn in your Physics class. Work and Power Concept Check Day 4: 11/16 1. Review simple machines 2. I love this. You have provided all information about work, energy, and power. Work and Power 2. Work simulation and problems Day 2: 11/14 1. Now is your opportunity to find out! 2 0 obj The unit used to measure work and energy is a joule. %PDF-1.3 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�$��.KD"��^��7� �\q,�VY��X��R*T (] q�J�H�=LJ˨h�n���J�U[Ա�;�#&}!�mS�i�Uыzs�3,�$���. Finish word problems Day 3: 11/15 1. 1. Rube Goldberg Project - this will replace a test, quiz, or lab score. Title: mso2B794.PDF Author: SColeman Created Date: 8/1/2005 10:12:40 AM >> This is so helpful, consice and easy. Summary on Work, Power and Energy Work is done when a force produces motion. Laboratory #5 Energy, Work, and Power Part A. I am More Powerful Than a Ford Mustang! 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. Theory: The work-energy theorem states that the net (total) work done on a system is equal to its increase in kinetic energy. Unit of power to compare work done by a steam engine to a horse. Theoretical Background: Work done by constant force, F acting on an object so that it moves through a displacement, d is Terms in this set (17) Work. Finish Workout Lab 2. One of the most important concepts in science is energy. And for doing work energy is required. 8.01x - Lect 11 - Work, Kinetic & Potential Energy, Gravitation, Conservative Forces - Duration: 49:06. In this article, we will learn all about the concept of work, power and energy. %��������� That energy can be measured by looking to the weight of the jar and the height of the incline. Conservation of Energy Day1: 11/13 1. 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