How can pulling down make something go up? How do carnival rides work? What makes the hands on a watch go around? How does pedaling a bicycle make it move? This title shows you how different kinds of these two simple machines are all around you to make your work and play easier.

Springs have been used for more than 500 years as a simple machine that can make other machines work. When you open a screen door, open an umbrella, sit on a sofa, or sleep on a mattress you are using springs. This book explains what springs are and how they help you do everyday things. Topics include: Why won't a Slinky go up stairs? How can a catapult help a place take off? How does a clock work?

The 11 lessons in this module introduce students to single and compound pulleys and gear systems. Students investigate, design, and construct various pulley systems and gear mechanisms.Also included:materials lists activity descriptions questioning techniques activity centre and extension ideas assessment suggestions activity sheets and visuals The module offers a detailed introduction to the Hands-On Science program (guiding principles, implementation guidelines, an overview of the skills that young students use and develop during scientific inquiry), a list of children's books and websites related to the science topics introduced, and a classroom assessment plan with record-keeping templates.

Examines simple machines, ranging from pliers to cranes, in a book with twenty easy-to-do experiments.

Machine Drawing is divided into three parts. Part I deals with the basic principles of technical drawing, dimensioning, limits, fits and tolerances. Part II provides details of how to draw and put machine components together for an assembly drawing. Part III contains problems on assembly drawings taken from the diverse fields of mechanical, production, automobile and marine engineering.

Mechanical comprehension tests are used widely during technical selection tests within the careers sector. Mechanical comprehension and reasoning tests combine many different elements. The test itself is usually formed of various pictures and diagrams that illustrate different mechanical concepts and principles. Mechanical comprehension and reasoning tests are normally highly predictive of performance in manufacturing, technical and production jobs. This comprehensive guide will provide you with sample test questions and answers to help you prepare for your mechanical comprehension test. An explanation of the tests and what they involve; Sample timed-tests to assist you during your preparation; Advice on how to tackle the tests; Understanding mechanical advantage; Answers and explanations to the questions; An introduction chapter for fault diagnosis.