LEVERS Author David and Patricia Armentrout Simple Machines ROURKE PUBLISHING Vero Beach Florida 32964
MACHINES Do you know what it means when someone says Take a load off It means to rest or take it easy How do you take it easy when there is work to do Simple you use a machine to make the work easier Think about some machines people use everyday like bicycles trucks and can openers Yes can openers are machines They are simple machines 4
Work equals the effort or force used to move or lift something over a distance 5
