SIMPLE MACHINES in EVERYDAY LIFE Take a Look Around Your House, Neighborhood Or School

Total Page:16

File Type:pdf, Size:1020Kb

SIMPLE MACHINES in EVERYDAY LIFE Take a Look Around Your House, Neighborhood Or School SIMPLE MACHINES IN EVERYDAY LIFE Take a look around your house, neighborhood or school. Simple machines are everywhere! Can you spot them? In the chart below, document a few places where you have found each simple machine and what it is used for. Machine Where found What it does Lever Wheel and Axle Inclined Plane Wedge Pulley Screw This publication is available in alternative media on request. Penn State is an equal opportunity, affirmative action employer, and is committed to providing employment opportunities toall qualified applicants without regard to race, color, religion, age, sex, sexual orientation, gender identity, national origin, disability or protected veteran status. WHAT IS A SIMPLE MACHINE? A simple machine is a tool that has very few parts and is used to make work easier. What is work? Work is the amount of force or effort it takes to move an object from one place to another. There are 6 types of simple machines: Lever: A lever is a moveable beam placed over a fixed point or fulcrum. The load is placed on one end and the force (or work) is placed on the other. A lever is used to raise a load a short distance. Picture source: https://www.softschools.com/examples/simple_machines/levers_examples/510/ Wheel and Axle: A wheel alone and an axle alone are not considered simple machines. They must be combined. When the axle spins, the output of force in the wheel is greater, making moving the object easier. Picture source: https://eschooltoday.com/science/simple-machines/what-is-a-wheel-and-axle.html Inclined Plane: An inclined plane is also called a ramp. The longer the ramp, the easier it will be to push the load up. If a ramp is short, it will take less time but more effort to move the load up. Picture source: https://museumachines.weebly.com/incline-plane-ramps/incline-plane Wedge: A wedge is used to separate objects by using two inclined planes. It is a triangle that narrows into a sharp point, and can be used as it is, or attached to a handle. When force is put on the wide end of the wedge, the force is pushed out on both sides, making splitting objects much easier. Picture source: https://www.clipartkey.com/view/Jbobxh_6-simple-machines-wedge/ Pulley: A pulley is a grooved wheel with a rope, chain or belt in it. A load is attached to one end of the rope, and force (pulling) is placed on the opposite side to bring the load up high. When you add more than one pulley, the work gets even easier. Picture source: http://www.justscience.in/articles/the-six-types-of-simple-machines/2017/05/30 Screw: A screw is an inclined plane wrapped around a cylinder. A screw holds or pulls things together and makes them difficult to separate. Picture source: https://eschooltoday.com/science/simple-machines/what-is-a-screw.html Turn to the other side to discover simple machines that are used in your every day life! .
Recommended publications
  • W090-03-Wedge-Owners-Manual-1
    SAFETY PRECAUTIONS PERSONAL PROTECTION Wear all required personal protective equipment including but not limited to: Approved Safety Goggles Gloves Do not modify “The Wedge” without the written consent of Footage Tools Inc. KEEP TOOL IN GOOD CONDITION Be sure the tool is in good operating condition. Inspect the striking surface of the hammer and the flaring tool before each use. If either striking face surface is mushroomed, grind or file the striking surface to its approximate original shape, maintaining a slight crown on the end before use. Use only a soft faced brass hammer. (Do not use a hardened steel hammer!). WARNING: STAY CLEAR OF AREA BEHIND AND AROUND PULLING END OF OPERATION PLEASE NOTE: The Wedge SE is recommended for replacing existing galvanized, copper and lead service lines. The Wedge SE3 is recommended for replacing existing PE & PVC service lines. USING THE “THE WEDGE SE” SERVICE LINE REPLACEMENT TOOL REQUIRED TOOLS AND EQUIPMENT 1. “The Wedge” Service Line Replacement Tool. 2. 3/8” Cable with ferrule on one end, fused to a point on the other, at least 10 feet longer than pipe to be replaced. 3. Soft faced brass hammer. 4. Deburring tool. 5. Safety goggles and gloves. 6. Cable grip or clamp. 7. Copper or PE adapters. 8. Two adjustable wrenches. “The Wedge SE & TE” Operating Instructions SERVICE REPLACEMENT PROCEDURE 1. Expose pipe to be replaced at both ends and disconnect. 2. Insert the fused end of the cable into the threaded end of the “The Wedge SE” and out through the pointed end. Pull the entire length of cable through “The Wedge SE” until the ferrule on the cable seats inside “The Wedge SE”.
    [Show full text]
  • Leadscrew Brochure
    • High Repeatability • High accuracy • Short Lead times • Fast Prototyping High Precision Lead Screws Offering smooth, precise, cost effective positioning, lead screws are the ideal solution for your application. Thomson Neff precision lead screws from Huco Dynatork are an excellent economical solution for your linear motion requirements. For more than 25 years, Thomson has designed and manufactured the highest quality lead screw assemblies in the industry. Our precision rolling proc- ess ensures accurate positioning to .075mm/300mm and our PTFE coating process produces assemblies that have less drag torque and last longer. Huco Dynatork provides a large array of standard plastic nut assemblies in anti-backlash or standard Supernut® designs. All of our standard plastic nut assemblies use an internally lubricated Acetal providing excellent lubricity and wear resistance with or without additional lubrication. With the introduction of our new unique patented zero backlash designs, Huco Dynatork provides assemblies with high axial stiffness, zero back- lash and the absolute minimum drag torque to reduce motor requirements. These designs produce products that cost less, perform better and last longer. Both designs automatically adjust for wear ensuring zero backlash for the life of the nut. Huco Dynatork also provides engineering design services to aid in your design requirements producing a lead screw assembly to your specifica- tions. Call Huco Dynatork today on 01992 501900 to discuss your application with one of our experienced application engineers Huco Dynatork Products Deliver Performance To ensure precise positioning, the elimination of backlash is of primary concern. Several types of anti-backlash mechanisms are common in the market which utilise compliant pre- loads.
    [Show full text]
  • Lesson: Rube Goldberg and the Meaning of Machines Contributed By: Integrated Teaching and Learning Program, College of Engineering, University of Colorado Boulder
    Lesson: Rube Goldberg and the Meaning of Machines Contributed by: Integrated Teaching and Learning Program, College of Engineering, University of Colorado Boulder Quick Look Grade Level: 8 (7-9) Time Required: 20 minutes Lesson Dependency : None Subject Areas: Physical Science Summary Simple and compound machines are designed to make work easier. When we encounter a machine that does not t this understanding, the so-called machine seems absurd. Through the cartoons of Rube Goldberg, students are engaged in critical thinking about the way his inventions make simple tasks even harder to complete. As the nal lesson in the simple machines unit, the study of Rube Goldberg machines can help students evaluate the importance and usefulness of the many machines in the world around them. This engineering curriculum meets Next Generation Science Standards (NGSS). Engineering Connection One engineering objective is to help people via technological advances. Many of these greater advances in technology can be seen in machines invented by engineers. Rube Goldberg went to school to be an engineer, and after graduating, he decided to become an artist. He drew cartoons of inventions that did simple things in very complicated ways. His inventions involved many complex systems of simple machines, all organized in logical sequences, to accomplish simple tasks. An important skill for engineers is to An example Rube Goldberg contraption. evaluate the design of machines for their genuine usefulness for their audiences. Often, the best design is the simplest design. Pre-Req Knowledge In order to understand compound machines, it is helpful if students are familiar with the six individual simple machines and their abilities to make work easier, as described in lessons 1-3 of this unit.
    [Show full text]
  • Roller Screws
    1213E_MSD_EXCO 1/11/06 10:06 AM Page 37 SIZEWISE Edited by Colleen Telling Sizing and applying ROLLER SCREWS Gary Shelton Roller screw shaft Principal Design Engineer Ground shaft Exlar Corp. Timing gear planetary Chanhassen, Minn. Roller screw nut roller screw How it works Roller screws convert ro- tary motion into linear mo- Roller screws’ tion just like acme and numerous ballscrews. Comparably contact points sized roller screws, however, vs. ballscrews’, have better efficiency than lengthen their acme screws and can carry lives and Spacer larger loads than ballscrews. washer increase load In addition, they can cycle Roller timing gear capacity and more often and turn signifi- stiffness. They Roller cantly faster than either, contain ground suiting them to precise, con- Retaining clip leadscrews for high- tinuous-duty applications. Roller journal precision applications Radiused flanks on the and come in tolerance rollers deliver point contact classes G1, G3, G4, and G5. like balls on a raceway, and only the radius is part of the profile. Therefore, a larger radius transversely and a precision- and additional contact points can ground spacer is inserted be- be packed into the available tween the front and back halves. space, thus lowering stress. In ad- The double nut is another alter- dition, the rolling contact be- native. As the name suggests, it tween components has low fric- uses two nuts preloaded against tion, yielding high efficiency. Be- each other on one screw. There is cause the rolling members are no sacrifice of life for its de- fixed relative to each other and creased backlash, but the double never touch adjacent rollers, nut costs more than standard sin- roller screws can turn at speeds gle-nut arrangements.
    [Show full text]
  • Simple Machine Simple Machines
    Simple Machine Simple Machines • Changes effort, displacement or direction and magnitude of a load • 6 simple machines – Lever – Incline plane – Wedge – Screw – Pulley – Wheel and Axle • Mechanical Advantage 퐸푓푓표푟푡 퐷푠푡푎푛푐푒 퐿표푎푑 퐿 – Ideal: IMA = = = Note: (Effort Distance•Effort) =(Load Distance•Load) or Ein=Eout 퐿표푎푑 퐷푠푡푎푛푐푒 퐼푑푒푎푙 퐸푓푓표푟푡 퐸퐼 퐿표푎푑 퐿 – Actual: AMA= = 퐴푐푡푢푎푙 퐸푓푓표푟푡 퐸퐴 • Efficiency how the effort is used to move the load – Losses due to friction or other irreversible actions 퐸푛푒푟푔푦 푢푠푒푑 퐴푀퐴 퐸퐼 – η= = = Note: (EA=EI-Loss) 퐸푛푒푟푔푦 푠푢푝푝푙푒푑 퐼푀퐴 퐸퐴 2/25/2016 MCVTS CMET 2 Lever • Levers magnify effort or displacement • Three classes of levers based on location of the fulcrum 150lb – Class 1 lever: Fulcrum between the Load and Effort Examples: See-Saw, Pry Bar, Balance Scale – Class 2 lever: Load between the Effort and Fulcrum Examples: Wheelbarrow, Nut Cracker – Class 3 Lever: Effort between Load and Fulcrum Examples: Elbow, Tweezers Effort η=0.9 푑퐸 퐿 • 퐼푀퐴퐿푒푣푒푟 = = 푑퐿 퐸퐼 퐿 푑 8 • 퐴푀퐴 = 푒 퐿푒푣푒푟 퐸 퐼푀퐴 = = = 2 퐴 푑퐿 4 퐴푀퐴퐿푒푣푒푟 퐸퐴 퐿 150 • η= = 퐸 = = = 75푙푏 퐼푀퐴퐿푒푣푒푟 퐸퐼 퐼 퐼푀퐴 2 퐴푀퐴 = η퐼푀퐴 = 0.9 ∙ 2 = 1.8 퐿 150 퐸 = = = 83.33푙푏 퐴 퐴푀퐴 1.8 2/25/2016 MCVTS CMET 3 Incline Plane • Decreases effort to move a load to a new height or vertical rise Vert. • Friction opposes motion up the ramp increasing Rise the effort required (h) 푠 1 • 퐼푀퐴 = = ℎ 푠푛휃 θ 퐸푛푒푟푔푦 푢푠푒푑 퐴푀퐴 퐸 • η= = = 퐼 퐸푛푒푟푔푦 푠푢푝푝푙푒푑 퐼푀퐴 퐸퐴 θ w Ex. An incline plane with 20°slope is used to move a ℎ 36 a) 푠 = = = 105.3 푖푛 50-lb load a vertical distance of 36 inches.
    [Show full text]
  • Trying Plane
    OLD STREET TOOL, Inc. 104 Jordan Drive Eureka Springs, Arkansas 72632 Larry Williams: (479) 981-1313 Don McConnell: (479) 981-3688 (http://www.planemaker.com) The care, use and tuning of your new trying plane. Warning: Your new plane is a single iron plane. As such, there is nothing except a firmly set wedge to keep your plane's iron from falling through the mouth. Handling these planes without the wedge firmly set can be hazardous. Please set the plane's iron while holding it over your bench; preferably not over material for an important project. Please explain this and supervise children or other users who may not be aware of the risks of single iron planes. Sharpening The iron supplied with your plane is sharp and ready for use. It is suggested that you accustom yourself to the plane with the iron as supplied before making changes to its edge. Your sharpening stones (or what ever sharpening medium you use) must be flat. Once the face of the iron (often referred to as the back) is flat, it's best to use only your finer stones to remove any burr left from honing the iron's bevel. This will help limit enlarging the shaving aperture by keeping the iron near it's original thickness. Stropping can be done, but it is important to avoid rounding (dubbing) the face of the iron. Felt buffing wheels tend to round or dub the surfaces that form the edge. The iron of your trying plane has been provided with a straight cutting edge, with the corners relieved to minimize their leaving signatures on the surface of the wood being planed.
    [Show full text]
  • What Technology Wants / Kevin Kelly
    WHAT TECHNOLOGY WANTS ALSO BY KEVIN KELLY Out of Control: The New Biology of Machines, Social Systems, and the Economic World New Rules for the New Economy: 10 Radical Strategies for a Connected World Asia Grace WHAT TECHNOLOGY WANTS KEVIN KELLY VIKING VIKING Published by the Penguin Group Penguin Group (USA) Inc., 375 Hudson Street, New York, New York 10014, U.S.A. Penguin Group (Canada), 90 Eglinton Avenue East, Suite 700, Toronto, Ontario, Canada M4P 2Y3 (a division of Pearson Penguin Canada Inc.) Penguin Books Ltd, 80 Strand, London WC2R 0RL, England Penguin Ireland, 25 St. Stephen's Green, Dublin 2, Ireland (a division of Penguin Books Ltd) Penguin Books Australia Ltd, 250 Camberwell Road, Camberwell, Victoria 3124, Australia (a division of Pearson Australia Group Pty Ltd) Penguin Books India Pvt Ltd, 11 Community Centre, Panchsheel Park, New Delhi - 110 017, India Penguin Group (NZ), 67 Apollo Drive, Rosedale, North Shore 0632, New Zealand (a division of Pearson New Zealand Ltd) Penguin Books (South Africa) (Pty) Ltd, 24 Sturdee Avenue, Rosebank, Johannesburg 2196, South Africa Penguin Books Ltd, Registered Offices: 80 Strand, London WC2R 0RL, England First published in 2010 by Viking Penguin, a member of Penguin Group (USA) Inc. 13579 10 8642 Copyright © Kevin Kelly, 2010 All rights reserved LIBRARY OF CONGRESS CATALOGING IN PUBLICATION DATA Kelly, Kevin, 1952- What technology wants / Kevin Kelly. p. cm. Includes bibliographical references and index. ISBN 978-0-670-02215-1 1. Technology'—Social aspects. 2. Technology and civilization. I. Title. T14.5.K45 2010 303.48'3—dc22 2010013915 Printed in the United States of America Without limiting the rights under copyright reserved above, no part of this publication may be reproduced, stored in or introduced into a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording or otherwise), without the prior written permission of both the copyright owner and the above publisher of this book.
    [Show full text]
  • 2 Simple Machines
    Name Class Date CHAPTER 13 Work and Energy SECTION 2 Simple Machines KEY IDEAS As you read this section, keep these questions in mind: • What are simple machines? • What simple machines are in the lever family? • What simple machines are in the inclined plane family? • What are compound machines? What Are Simple Machines? We are surrounded by many different electronics and READING TOOLBOX machines. In physics, a machine is a mechanical device Compare As you read that changes the motion of an object. Remember that this section, make a chart machines make work easier by changing the way a force showing the similarities and is applied. Many machines, such as cars and bicycles, differences between the six simple machines. Describe are complicated. However, even the most complicated how each machine affects machine is made from a combination of just six simple input and output forces machines. Simple machines are the most basic machines. and distances. Include the Scientists divide the six simple machines into two fam- mechanical advantage each machine provides. ilies: the lever family and the inclined plane family. The lever family includes the simple lever, the pulley, and the wheel and axle. The inclined plane family includes the simple inclined plane, the wedge, and the screw. The lever family Simple lever Pulley EHHDBG@<EHL>K Wheel and axle 1. Infer What do you think The is the reason that the wedge inclined and the simple inclined plane plane are in the same family of simple machines? family Screw Simple inclined Wedge plane How Do Levers Work? If you have ever used a claw hammer to remove a nail from a piece of wood, you have used a simple lever.
    [Show full text]
  • 12. Simple Machines
    12. Simple Machines Observe and discuss. In the following pictures, certain devices are used to accomplish certain tasks more easily. Name the devices and discuss how they help. Such devices which are used to get more work done in less time and less effort are called machines. The nail cutter, the bottle opener, the wheel used to push the load shown in the picture are all machines. They have only one or two parts and a simple and easy structure. Such machines are called simple machines. Simple machines can be handled easily, and there are less chances of these machines breaking down or getting damaged. We use many such machines in our day-to-day life. Various kinds of Can you tell? Observe the machines shown in the following pictures. For what purposes are they used? Can you name some other machines of this kind? These machines have many parts which carry out many processes for completing a task. For this purpose, the parts are joined to one another. Therefore, these machines are called complex machines. Some of the parts of such complex machines are actually simple machines. The structure of complex machines is complicated. Various machines In our day-to-day life, we use simple or complex machines depending upon the task to be carried out and the time and efforts required to do it. An inclined plane A heavy drum is to be loaded onto a truck. Ravi chose the plank A while Hamid chose the plank B. Rahi did not use a plank at all. 1. Who would find the drum heaviest to load? 2.
    [Show full text]
  • Build a Plane That Cuts Smooth and Crisp Raised Panels With, Against Or Across the Grain – the Magic Is in the Spring and Skew
    Fixed-width PanelBY WILLARD Raiser ANDERSON Build a plane that cuts smooth and crisp raised panels with, against or across the grain – the magic is in the spring and skew. anel-raising planes are used Mass., from 1790 to 1823 (Smith may to shape the raised panels in have apprenticed with Joseph Fuller doors, paneling and lids. The who was one of the most prolific of the profile has a fillet that defines early planemakers), and another similar Pthe field of the panel, a sloped bevel example that has no maker’s mark. to act as a frame for the field and a flat Both are single-iron planes with tongue that fits into the groove of the almost identical dimensions, profiles door or lid frame. and handles. They differ only in the I’ve studied panel-raising planes spring angles (the tilt of the plane off made circa the late 18th and early 19th vertical) and skew of the iron (which centuries, including one made by Aaron creates a slicing cut across the grain to Smith, who was active in Rehoboth, reduce tear-out). The bed angle of the Smith plane is 46º, and the iron is skewed at 32º. Combined, these improve the quality of cut without changing the tool’s cutting angle – which is what happens if you skew Gauges & guides. It’s best to make each of these gauges before you start your plane build. In the long run, they save you time and keep you on track. Shaping tools. The tools required to build this plane are few, but a couple of them – the firmer chisel and floats – are modified to fit this design.
    [Show full text]
  • Rokenbok Snapstack Student Engineering Workbook
    Inclined Plane v2.0 Progression: Applications in Design & Engineering - Section 1 Student Engineering Workbook Team Members: Total Points 1. 3. Workbook: /22 pts 2. 4. Challenge: /30 pts Key Terms Write the definitions of each key term in the space provided. 1. Simple Machine: 2. Inclined Plane: 3. Rise: 4. Mechanical Advantage: 5. Force: 6. Work: 7. Effort: 8. Load: 1 Learn, Build & Modify Elements of an Inclined Plane There are two basic elements of an inclined plane. Identify the correct element in the spaces provided. 9. 10. 9. 10. Purpose of an Inclined Plane Fill in the blanks below. 11. Purpose: 12. The inclined plane makes work easier by __________________ the amount of effort that must be applied to raise or lower a load. 13. To reduce the amount of effort needed to raise or lower an object in an inclined plane, the length of the slope should be _______________________. (extended or reduced) Build and Modify Place a check in the boxes below as the team completes each step. 14. Build Rokenbok Inclined Plane 15. Test Inclined Plane - Step 1 16. Test Inclined Plane - Step 2 2 Build & Modify Understanding Mechanical Advantage Fill in the blanks in the statements below. 17. Mechanical Advantage exists when the ______________________ force of a machine is _____________________ than the ____________________ force that was applied to it. 18. For a machine to create mechanical advantage, it must trade increased time or ____________________ for reduced effort. Mechanical Advantage in an Inclined Plane Use the formula for calculating mechanical advantage to solve the Example 1 - Inclined Plane problems below.
    [Show full text]
  • Chapter 8 Glossary
    Technology: Engineering Our World © 2012 Chapter 8: Machines—Glossary friction. A force that acts like a brake on moving objects. gear. A rotating wheel-like object with teeth around its rim used to transmit force to other gears with matching teeth. hydraulics. The study and technology of the characteristics of liquids at rest and in motion. inclined plane. A simple machine in the form of a sloping surface or ramp, used to move a load from one level to another. lever. A simple machine that consists of a bar and fulcrum (pivot point). Levers are used to increase force or decrease the effort needed to move a load. linkage. A system of levers used to transmit motion. lubrication. The application of a smooth or slippery substance between two objects to reduce friction. machine. A device that does some kind of work by changing or transmitting energy. mechanical advantage. In a simple machine, the ability to move a large resistance by applying a small effort. mechanism. A way of changing one kind of effort into another kind of effort. moment. The turning force acting on a lever; effort times the distance of the effort from the fulcrum. pneumatics. The study and technology of the characteristics of gases. power. The rate at which work is done or the rate at which energy is converted from one form to another or transferred from one place to another. pressure. The effort applied to a given area; effort divided by area. pulley. A simple machine in the form of a wheel with a groove around its rim to accept a rope, chain, or belt; it is used to lift heavy objects.
    [Show full text]