1. Simple Machines!

2. Simple Machines Make work use less force by increasing the distance –When effort distance increases, effort force decreases! Six different simple machines

3. Pulley Uses grooved wheels and rope or chain to move a load A single pulley only changes direction of force Multiple pulleys are called block and tackle MIKIDS for YOUR KIDS!

4. Lever A long bar that rests on a pivot point called a fulcrum Three classes of lever, depending on where load and fulcrum are located

5. First Class Lever Fulcrum between load and effort Effort distance larger, but effort force less

6. Second Class Lever Load between fulcrum and effort

7. Third Class Lever Effort between fulcrum and load

8. Wedge Object with at least one slanting edge Moves through material (moving inclined plane)

9. Wheel and Axle Wheel with rod through center (attached together) Outside of wheel moves large distance (effort distance) while axle moves small distance (resistance distance)

10. Inclined Plane Slanting surface connecting higher and lower points Move longer distance using less force

11. Screw Inclined plane wrapped around a pole Moves things or holds things together

12. And now a test! Edheads - Simple Machines Activities - Lever - Pulley - Wedge - Screw - Inclined Plane - Wheel and Axle - GearEdheads - Simple Machines Activities - Lever - Pulley - Wedge - Screw - Inclined Plane - Wheel and Axle - Gear