Compare the forces needed to lift and pull the block. I want you to name four of the most helpful machines to you and explain why. Today we have learned that machine have an effect on force. I have taken it apart. Make a list of all the simple machines that are in the old typewriter.
Teacher orally presents dysfunctional simple machines.
Children will discuss in groups how this change will decrease the effectiveness of each simple machine. Afterwards, each group will report to the class. Cut the wire of a hanger 20 centimeters on each side of the book. The University of Tennessee at Martin is not responsible for the information or views expressed here.