The document discusses energy, work, and simple machines. It defines energy, kinetic energy, and work, and establishes the relationship between work and kinetic energy in the work-energy theorem. It also explains how simple machines like levers and pulleys can be used to trade off force and distance in order to reduce the amount of effort required for a task.
A simple ppt yet interactive on the topic work power and energy. With smooth design and looks the ppt is very good for clearing the basics related to this topic, hope it will help you further.
This is a Powerpoint presentation based on the physics concept of work, energy, and power. It includes all you want to know about work done, different types of energies, laws of conservation of energy and power.
Explain work, energy and power. The Law of Conservation of Energy is utilized as well as conservative and non conservative systems.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
A simple ppt yet interactive on the topic work power and energy. With smooth design and looks the ppt is very good for clearing the basics related to this topic, hope it will help you further.
This is a Powerpoint presentation based on the physics concept of work, energy, and power. It includes all you want to know about work done, different types of energies, laws of conservation of energy and power.
Explain work, energy and power. The Law of Conservation of Energy is utilized as well as conservative and non conservative systems.
**More good stuff available at:
www.wsautter.com
and
http://www.youtube.com/results?search_query=wnsautter&aq=f
This is a summary of the topic "Energy, work and power" in the GCE O levels subject: Physics. Students taking either the combined science (chemistry/physics) or pure Physics will find this useful. These slides are prepared according to the learning outcomes required by the examinations board.
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Remote sensing and monitoring are changing the mining industry for the better. These are providing innovative solutions to long-standing challenges. Those related to exploration, extraction, and overall environmental management by mining technology companies Odisha. These technologies make use of satellite imaging, aerial photography and sensors to collect data that might be inaccessible or from hazardous locations. With the use of this technology, mining operations are becoming increasingly efficient. Let us gain more insight into the key aspects associated with remote sensing and monitoring when it comes to mining.
India Orthopedic Devices Market: Unlocking Growth Secrets, Trends and Develop...Kumar Satyam
According to TechSci Research report, “India Orthopedic Devices Market -Industry Size, Share, Trends, Competition Forecast & Opportunities, 2030”, the India Orthopedic Devices Market stood at USD 1,280.54 Million in 2024 and is anticipated to grow with a CAGR of 7.84% in the forecast period, 2026-2030F. The India Orthopedic Devices Market is being driven by several factors. The most prominent ones include an increase in the elderly population, who are more prone to orthopedic conditions such as osteoporosis and arthritis. Moreover, the rise in sports injuries and road accidents are also contributing to the demand for orthopedic devices. Advances in technology and the introduction of innovative implants and prosthetics have further propelled the market growth. Additionally, government initiatives aimed at improving healthcare infrastructure and the increasing prevalence of lifestyle diseases have led to an upward trend in orthopedic surgeries, thereby fueling the market demand for these devices.
Putting the SPARK into Virtual Training.pptxCynthia Clay
This 60-minute webinar, sponsored by Adobe, was delivered for the Training Mag Network. It explored the five elements of SPARK: Storytelling, Purpose, Action, Relationships, and Kudos. Knowing how to tell a well-structured story is key to building long-term memory. Stating a clear purpose that doesn't take away from the discovery learning process is critical. Ensuring that people move from theory to practical application is imperative. Creating strong social learning is the key to commitment and engagement. Validating and affirming participants' comments is the way to create a positive learning environment.
[Note: This is a partial preview. To download this presentation, visit:
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Sustainability has become an increasingly critical topic as the world recognizes the need to protect our planet and its resources for future generations. Sustainability means meeting our current needs without compromising the ability of future generations to meet theirs. It involves long-term planning and consideration of the consequences of our actions. The goal is to create strategies that ensure the long-term viability of People, Planet, and Profit.
Leading companies such as Nike, Toyota, and Siemens are prioritizing sustainable innovation in their business models, setting an example for others to follow. In this Sustainability training presentation, you will learn key concepts, principles, and practices of sustainability applicable across industries. This training aims to create awareness and educate employees, senior executives, consultants, and other key stakeholders, including investors, policymakers, and supply chain partners, on the importance and implementation of sustainability.
LEARNING OBJECTIVES
1. Develop a comprehensive understanding of the fundamental principles and concepts that form the foundation of sustainability within corporate environments.
2. Explore the sustainability implementation model, focusing on effective measures and reporting strategies to track and communicate sustainability efforts.
3. Identify and define best practices and critical success factors essential for achieving sustainability goals within organizations.
CONTENTS
1. Introduction and Key Concepts of Sustainability
2. Principles and Practices of Sustainability
3. Measures and Reporting in Sustainability
4. Sustainability Implementation & Best Practices
To download the complete presentation, visit: https://www.oeconsulting.com.sg/training-presentations
Enterprise Excellence is Inclusive Excellence.pdfKaiNexus
Enterprise excellence and inclusive excellence are closely linked, and real-world challenges have shown that both are essential to the success of any organization. To achieve enterprise excellence, organizations must focus on improving their operations and processes while creating an inclusive environment that engages everyone. In this interactive session, the facilitator will highlight commonly established business practices and how they limit our ability to engage everyone every day. More importantly, though, participants will likely gain increased awareness of what we can do differently to maximize enterprise excellence through deliberate inclusion.
What is Enterprise Excellence?
Enterprise Excellence is a holistic approach that's aimed at achieving world-class performance across all aspects of the organization.
What might I learn?
A way to engage all in creating Inclusive Excellence. Lessons from the US military and their parallels to the story of Harry Potter. How belt systems and CI teams can destroy inclusive practices. How leadership language invites people to the party. There are three things leaders can do to engage everyone every day: maximizing psychological safety to create environments where folks learn, contribute, and challenge the status quo.
Who might benefit? Anyone and everyone leading folks from the shop floor to top floor.
Dr. William Harvey is a seasoned Operations Leader with extensive experience in chemical processing, manufacturing, and operations management. At Michelman, he currently oversees multiple sites, leading teams in strategic planning and coaching/practicing continuous improvement. William is set to start his eighth year of teaching at the University of Cincinnati where he teaches marketing, finance, and management. William holds various certifications in change management, quality, leadership, operational excellence, team building, and DiSC, among others.
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Discover the innovative and creative projects that highlight my journey throu...dylandmeas
Discover the innovative and creative projects that highlight my journey through Full Sail University. Below, you’ll find a collection of my work showcasing my skills and expertise in digital marketing, event planning, and media production.
Explore our most comprehensive guide on lookback analysis at SafePaaS, covering access governance and how it can transform modern ERP audits. Browse now!
Improving profitability for small businessBen Wann
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As a business owner in Delaware, staying on top of your tax obligations is paramount, especially with the annual deadline for Delaware Franchise Tax looming on March 1. One such obligation is the annual Delaware Franchise Tax, which serves as a crucial requirement for maintaining your company’s legal standing within the state. While the prospect of handling tax matters may seem daunting, rest assured that the process can be straightforward with the right guidance. In this comprehensive guide, we’ll walk you through the steps of filing your Delaware Franchise Tax and provide insights to help you navigate the process effectively.
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2. ENERGY AND WORK If you had a job moving boxes around a warehouse, you would know something about work and energy. You have probably thought on more than one occasion that physics is hard work and that you expend a lot of energy solving problems. Your meaning of the words work and energy is different from their meaning in physics.
3. ENERGY When describing an object, you might say that it is blue, it is 2 m tall, and it can produce a change. This property, the ability to produce change in itself or the environment, is called energy . The energy of an object can take many forms, including thermal energy, chemical energy, and energy of motion.
4. ENERGY The energy of an object resulting from motion is called kinetic energy . To describe kinetic energy mathematically, you need to use motion expressions and Newton’s second law of motion, F= ma.
5. ENERGY AND MOTION Start with an object of mass m , moving at speed v o . Now apply a force F , to the object to accelerate it to a new speed, v 1 . The equation to describe this is: v 1 2 = v o 2 + 2ad To see how energy is expressed in this relationship, you need to do some rearranging. First add a negative v o 2 to both sides. v 1 2 - v o 2 = 2ad
6. ENERGY OF MOTION Using Newton’s second law of motion, substitute F/m for a . v 1 2 - v o 2 = 2Fd/m And finally, multiply both sides of the equation by 1/2 m. 1/2mv 1 2 - 1/2mv o 2 = Fd
7. ENERGY OF MOTION On the left-hand side are the terms that describe the energy of the system. This energy results from motion and is represented by the symbol KE , for kinetic. KE = 1/2m v 2 Because mass and velocity are both properties of the system, kinetic energy describes a property of the system. In contrast, the right-hand side of the equation refers to the environment: a force exerted and the resulting displacement.
8. ENERGY OF MOTION Thus, some agent in the environment changed a property of the system. The process of changing the energy of the system is called work , and it is represented by the symbol W . W = Fd
9. ENERGY OF MOTION Substituting K and W into the equation, you obtain KE 1 - KE o = W. The left-hand side is simply the difference or change in kinetic energy and can be expressed by using a delta. KE = W In other words, this equation says that when work is done on an object, a change in kinetic energy results.
10. ENERGY OF MOTION This hypothesis, KE = W, has been tested and proven correct. It is called the work-energy theorem . A unit of energy is called a joule , in honor of James Prescott Joule. If a 2-kg object moves at 1 m/s, it has a kinetic energy of 1 J.
11. While the change in kinetic energy described the change in a property of an object, the term Fd , describes something done to the object. An agent in the environment exerted a force F that displaced the object an amount d . The work done on an object by external forces changes the amount of energy the object has.
12. Energy Transfer Looking at the equations we have just learned, notice that the direction of energy transfer can go both ways. If the environment does work on the system, then W is positive and the energy of the system increases. If, however, the system does work on the environment, then W is negative, and the energy of the system decreases . Work transfers energy between an environment and a system. Energy transfers can go either direction. Energy Transfer Work System Environment
13. Calculating Work The equation for work is W = Fd , however this equation holds only for constant forces exerted in the direction of the motion. What happens if the force is exerted perpendicular to the direction of motion ? An everyday example is the motion of a planet around the sun. If the orbit is circular, then the force is always perpendicular to the direction of motion. Consequently, the speed of the planet doesn't change. Therefore, its kinetic energy is also constant. Using the equation ΔKE = W, you see for constant KE that ΔKE = 0 and thus W = 0. This means that if F and d are at right angles, then W = 0.
14. CONSTANT FORCE AT AN ANGLE You’ve learned that a force exerted in the direction of motion does an amount of work given by W = Fd . A force perpendicular to the motion does no work. What work does a force exerted at an angle do? You push on the handle of a lawnmower at a 25-degree angle, with a force of 125 N. You know that a force can be replaced by its components.
15. CONSTANT FORCE AT AN ANGLE The 125-N force, F , exerted in the direction of the handle has two components. The magnitude of the horizontal component, F x , is related to the magnitude of the force, F , by a cosine function: cos 25° = F x /F. By solving for F x , you obtain F x = F cos 25° = 113 N.
16. CONSTANT FORCE AT AN ANGLE Using the same method, the vertical component is F y = -F sin 25.0° = -52.8 N, where the negative sign shows that the force is down . Because the displacement is in the x direction, only the x -component does work. The y -component does no work. The work you do when you exert a force at an angle to the motion is equal to the component of the force in the direction of the displacement times the distance moved.
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18. CONSTANT FORCE AT AN ANGLE The magnitude of the component force acting in the direction of displacement is found by multiplying the magnitude of force F by the cosine of the angle between F and the direction of the displacement, F x = F cos θ. Thus the work done is represented the following way. W = F cos θ d = Fd cos θ
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20. CONSTANT FORCE AT AN ANGLE Other agents exert forces on the lawn mower. Which of these agents do work. Earth’s gravity acts downward, friction exerts a horizontal force opposite the motion, and are perpendicular (or in friction's case, 180º) to the motion so do no work. The work done by friction is negative. Negative work done by a force reduces the energy of the system. Stop pushing on the mower, and it quickly stops moving; its energy would be reduced. Positive work done by a force increases the energy; negative work reduces it.
21. POWER Until now, none of the discussions of work has mentioned the time it takes to move an object. The work done by a person lifting a box of books is the same whether the box is lifted onto a shelf in 2 seconds or 20 minutes. Although the work done is the same, the power is different. Power is the rate of doing work. That is, power is the rate at which energy is transferred.
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23. POWER To calculate power, use the following formula Power is measured in watts (W). One watt is one joule of energy transferred in one second. Because a watt is such a small unit, power is often measured in kilowatts (kW). A kilowatt is 1000 watts.
24. Machines Everyone uses some machines ever day. Some are simple tools, such as bottle openers and screwdrivers; others are complex, such as bicycles and automobiles. Machines, whether powered by engines or people, make tasks easier. A machine eases the load by changing either the magnitude or the direction of a force as it transmits energy to the task.
25. Consider the bottle opener. When you use the opener, you lift the handle, thereby doing work on the opener. The opener lifts the cap, doing work on it. The work you do is called the input work , W i . The work the machine does is called the output work , W o . Work, as you recall, is the transfer of energy by mechanical means. You put work into a machine, in this case, the bottle opener. That is, you transfer energy to the opener. The opener, in turn, does work on the cap, transferring energy to it .
26. The opener is not a source of energy, so the cap cannot receive more energy than you put into the opener. Thus, the output work can never be greater than the input work . The machine simply aids in the transfer of energy from you to bottle cap.
27. Mechanical Advantage The force you exert on a machine is called the effort force , F e . The force exerted by the machine is called the resistance force , F r . The ratio of resistance force to effort force, F r /F e , is called the mechanical advantage (MA) of the machine. MA = F r F e
29. Many machines, such as the bottle opener, have a mechanical advantage greater than one. When the mechanical advantage is greater than one, the machine increases the force you apply . You can write the mechanical advantage of a machine in another way using the definition of work. The input work is product of the effort force you exert, F e , and the distance your hand moved, d e . A machine can increase force, but it can not increase energy . An ideal machine transfers all the energy, so the output work equals the input work . W o =W i or F r d r =F e d e
30. This equation can be rewritten F r /F e =d e /d r . We know that the mechanical advantage is given by MA = F r /F e . For an ideal machine, the mechanical advantage is called the ideal mechanical advantage, IMA. Note that you measure distances moved to calculate the ideal mechanical advantage, IMA , but you measure the forces exerted to find the actual mechanical advantage, MA . IMA = d e d r
31. Efficiency In a real machine, not all of the input work is available as output work. Some of the energy transferred by the work may be "lost" to thermal energy. Any energy removed from the system means less output work from the machine. Consequently, the machine is less efficient at accomplishing the task. The efficiency of a machine is defined as the ratio of output work to input work. efficiency = W o W i x 100%
32. An ideal machine has equal output and input work, W o /W i =1, and its efficiency is 100 %. All real machines have efficiencies less than 100%. Lower efficiency means that a greater effort force is needed to exert the same resistance force as a comparable machine of higher efficiency. efficiency = F r /F e d e /d r x 100% efficiency = MA IMA x 100%
33. Simple Machines Most machines, no matter how complex, are combinations of one or more of the six simple machines. They are the lever, pulley, wheel and axle, inclined plane, wedge, and screw.
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35. The lever is the only simple machines that has more than one variation. p. 235
36. Gears, one of the simple machines used in a bicycle, are really a form of the wheel and axle. The IMA of all machines is the ratio of distances moved. For levers and wheel and axles this ratio can be replaced by the distance between the place where the force is applied and the pivot point . A common version of the wheel and axle is a pair of gears on a rotating shaft. The IMA is the ratio of the radii of the two gears. Figure 10-10.
37. Compound Machine A compound machine consists of two or more simple machines linked so that the resistance force of one machine becomes the effort force of the second. The mechanical advantage of a compound machine is the product of the mechanical advantages of the simple machines it is made up of. MA = MA machine 1 x MA machine 2