It is the energy that measures the potential for work to be done. Unit of power to compare work done by a steam engine to a horse. •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. Rube Goldberg Project - this will replace a test, quiz, or lab score. .if you can't see the answers.. download the file and view it in Microsoft Wor Lectures by Walter Lewin. Theory: The work-energy theorem states that the net (total) work done on a system is equal to its increase in kinetic energy. They are probably the first thing you learn in your Physics class. The rate at which work is done or energy is transformed is called Power. Now is your opportunity to find out! You have provided all information about work, energy, and power. 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." 2 0 obj And for doing work energy is required. 257,814 views 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. Work simulation and problems Day 2: 11/14 1. Work and energy can be considered as two sides of the same coin. In this formula, E stands for energy, H stands for height above the ground and W stands for weight of the jar. If you provide more examples and problems on work, energy, and power then it will be a great post. When we lift a book away from the center of dear old Earth, we do work on that book. Finish word problems Day 3: 11/15 1. 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. Use an organizational system and label all … Title: mso2B794.PDF Author: SColeman Created Date: 8/1/2005 10:12:40 AM The concept of horsepower (the English unit for power) tells you how much energy a car generate in a given time period. That attraction arises from the Earth’s large mass, not the fact that it is spinning. >> Therefore, the power is calculated as follows. Intro to springs and Hooke's law (Opens a modal) What is Hooke's Law? Work is a force applied over a distance. 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. stream Summary on Work, Power and Energy Work is done when a force produces motion. Power. 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. For the experiments done here, energy can be measured according to the following formula: E = HW. The work-energy theorem states that the net work done on an object equals the change in its kinetic energy. Energy 3. 8.01x - Lect 11 - Work, Kinetic & Potential Energy, Gravitation, Conservative Forces - Duration: 49:06. Force exerted on an object that causes it to move. velisa October 17, 2016. Laboratory #5 Energy, Work, and Power Part A. I am More Powerful Than a Ford Mustang! Mathematically, work is represented by: The unit used to measure work and energy is a joule. 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. As the diligent students we are, we've all felt like we have way too much work to do. The following items should be in the Work and Energy portion of your notebook. 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�$��.KD"��^��7� �\q,�VY��X��R*T (] q�J�H�=LJ˨h�n���J�U[Ա�;�#&}!�mS�i�Uыzs�3,�$���. About; Teacher Guide; Using Lab Notebooks; Share; The Photo Gallery. SI units for power. 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). Because energy is the capacity to do work , we measure energy and work in the same units (N*m or joules). It is from its definition that power is the rate of doing work at specific displacement. During this lab, we will focus on the concepts of work, energy, and power as applied to human movement. Power is the time rate at which work is done. This energy we get from … 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. 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