Doorstops and Knives - Examples of Wedges
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Wedges Project

zipper

January 2017 - For a project about wedges, collect as many different kinds of wedges as you can find around your house and on your block. What are the wedges made of? Try to find some thin, long wedges (like knives or nails) and some thick, short wedges (like a splitting maul). Is a zipper a kind of wedge? Why? How does friction affect the work of a wedge?

Try using a wedge to split a wooden log with a sledgehammer. What kinds of wedge work best? Why?

More about wedges
More about simple machines

Bibliography and further reading about wedges and other simple machines:

Machines
Physics
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Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram, Pinterest, or Twitter, or buy her book, Vandals to Visigoths.
Karen Carr is Associate Professor Emerita, Department of History, Portland State University. She holds a doctorate in Classical Art and Archaeology from the University of Michigan. Follow her on Instagram or Twitter, or buy her book, Vandals to Visigoths.
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