CK-12 Physical Science - For Middle School

16.2. Machines http://www.ck12.org Compare this equation with the equation above for actual mechanical advantage. Notice how the ...

http://www.ck12.org Chapter 16. Work and Machines Lesson Review Questions Recall What is a machine? Identify three different wa ...

16.3. Simple Machines http://www.ck12.org 16.3 Simple Machines Lesson Objectives Explain how an inclined plane changes force. L ...

http://www.ck12.org Chapter 16. Work and Machines Inclined Plane The man inFigure16.14 is using a ramp to move a heavy dryer up ...

16.3. Simple Machines http://www.ck12.org FIGURE 16.15 The thin edge of a knife or chisel enters an object and forces it apart. ...

http://www.ck12.org Chapter 16. Work and Machines Ideal Mechanical Advantage= Length of inclined plane Length of screw The lengt ...

16.3. Simple Machines http://www.ck12.org FIGURE 16.18 Using a hammer to remove a nail changes both the direction and strength o ...

http://www.ck12.org Chapter 16. Work and Machines FIGURE 16.19 Which class of lever would you use to carry a heavy load, sweep a ...

16.3. Simple Machines http://www.ck12.org FIGURE 16.20 Both a Ferris wheel and a car steering wheel have an outer wheel and an i ...

http://www.ck12.org Chapter 16. Work and Machines type of pulley doesn’t increase the force, but it does change the direction of ...

16.3. Simple Machines http://www.ck12.org FIGURE 16.22 Single pulleys may be fixed or moveable. Compound pulleys consist of two ...

http://www.ck12.org Chapter 16. Work and Machines Points to Consider In this lesson, you read that a compound pulley consists of ...

16.4. Compound Machines http://www.ck12.org 16.4 Compound Machines Lesson Objectives Give examples of compound machines. Descri ...

http://www.ck12.org Chapter 16. Work and Machines "Simple Machines," and also a wheel and axle. Other compound machines, such as ...

16.4. Compound Machines http://www.ck12.org FIGURE 16.25 As a third-class lever, how does a fishing rod change the force applied ...

http://www.ck12.org Chapter 16. Work and Machines Lesson Review Questions Recall What is a compound machine? Give two examples ...

16.5. References http://www.ck12.org 16.5 References Tennis: Tim Donovan (Flickr:donovanshots); Studying: Flickr:English106. Te ...

http://www.ck12.org Chapter 16. Work and Machines Zip line: http://www.flickr.com/photos/tourismnewbrunswick/6088556853/; Crane: ...

http://www.ck12.org CHAPTER 17 Introduction to Energy Chapter Outline 17.1 Types of Energy 17.2 FORMS OFENERGY 17.3 ENERGYRESOUR ...

http://www.ck12.org Chapter 17. Introduction to Energy 17.1 Types of Energy Lesson Objectives Relate energy to work. Describe k ...