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.
Buy Making Machines with Ramps and Wedges by Chris Oxlade from Australia's Online Independent Bookstore, BooksDirect.