What is the difference between a ramp and a wedge How do ramps and wedges change forces and motion Can wedges help to move materials Making Machines with Ramps and Wedges looks at everything from ramps and wedges in history such as stone axes to the role of these simple machines in more complex machines such as construction diggers.

Author Biography

Chris Oxlade is an experienced author of non-fiction books for children. He has written more than 200 titles on science, technology, sports and hobbies, from encyclopedia articles to fun activity books.