Three kids need help moving a box full of rocks and learn about work, force, and machines
Identify real-world examples of simple machines like the lever, pulley, wedge and screw.
Students will know that work is done when something is moved; force must be applied to the object.
Students will understand that a machine is anything that helps do work. Basic machines are called simple machines. Simple machines help us do work by increasing force, changing the direction of force, or by changing the speed at wh...
Anticipatory set: There are six simple machines, which help people do work. See how many simple machines the students can name. Have samples of each machine to show as they are named (or use the Simple Machines Hands-on Kit). The six simple machines are: inclined pla...