Learn about different levers and how they can make work easier.
Student Application
See the six simple machines: the lever, wedge, inclined plain, pulley, wheel and axle, and screw.
Learning Objectives
Students will know that work is done when a force (effort) causes an object to move a distance.
Work = Force x Distance.
Students will understand that a machine is a tool that helps do work by reducing the effort that is required. Friction can slow a machine's ability to reduce effort.
Anticipatory set: Have the children write down any simple machines that they know and draw diagrams of them. Collect and save for review after watching the video.