Books with title How Wheels And Axles Work

If you ride a bicycle or a skateboard, or if own roller skates, you use wheels and axles. Readers discover the science behind these important simple machines. Its hard to go anywhere in our world today without seeing wheels and axles at work. Cars and trucks use these to take people to work and school every day. Tractors and wagons on farms have wheels and axles, too. Manageable text and vivid photographs help readers understand this basic science topic. A comprehensive glossary and a useful graphic organizer accompany the concepts presented, which aid readers in navigating this fun and fact-filled book.

A wheel and axle is a disk and cylinder joined together. These two objects are only a simple machine when used in tandem. A wheel and axle is a modified first-class lever. When force is applied to the axle, the force is multiplied and transferred to the wheel. This causes the wheel to cover more area. Readers will learn about the invention of the wheel and axle, where wheels and axles can be found, and how they make difficult jobs easier.