Practical Examples and Demonstrations of Simple Machines - JSS2 Basic technology Lesson Note

Practical demonstrations help in understanding how simple machines work and their real-world applications:

1. Levers: Demonstrate a first-class lever using a ruler and a small object as the load. Place the ruler on a pencil (fulcrum) and show how applying force on one end lifts the object on the other end.
2. Pulleys: Set up a simple pulley system using a rope and a wheel. Show how pulling down on one end of the rope can lift a weight attached to the other end.
3. Gears: Use interlocking toy gears to demonstrate how turning one gear can rotate another. Show how the direction of rotation and speed can change depending on the size of the gears.