THAMES & KOSMOS SIMPLE MACHINES

Jumpstart your study of mechanical physics
by learning all about simple machines and
how they’re used to make complex tasks
easier to do. Through 26 model-building
exercises, you’ll investigate all six classic
simple machines — wheels and axles, levers,
pulleys, inclined planes, screws, and wedges — as well
as gears. Also included is a specially designed spring
scale so that you can measure how the machines
change the direction and magnitude of forces,
making work easier to do