Wedges
David Armentrout and 1 more
Paperback
Temporarily Out Of Stock
£8.06 £8.95
Screws
Martha E H Rustad
Not Available
Simple Machines Pulley
Jeff Barger
Hardback
In Stock
£26.94 £29.93
Simple Machines Inclined Plane
Simple Machines Wedge
Simple Machines Screw
Screw
Inclined Plane
Wheel and Axle
Lever
Simple Machines Lever
Pulley
Pulleys
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