How to make Simple Machine Working Model with Match Board Concept

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Objective:

To create an interactive working model that explains simple machines (lever, pulley, inclined plane, etc.) using a match board concept powered by LED lights, a 9V battery, a buzzer, and conductive materials. The goal is to match the type of simple machine with its correct description or example.

Materials Required:

  1. Cardboard or wooden base (for the match board)
  2. LED lights (one for each correct match)
  3. 9V battery and battery clip
  4. Buzzer
  5. Nails or conductive pins
  6. Wires (for connections)
  7. Copper tape or conductive wire
  8. Labels for simple machines and their descriptions/examples
  9. Resistors (to protect LEDs)
  10. Glue, tape, and scissors

Steps to Build Simple Machine Working Model with Match Board Concept:

Prepare the Match Board:

  • Divide the board into two sections:
    • Left Side: Names of simple machines (e.g., Lever, Pulley, Inclined Plane, Wheel and Axle, Wedge, Screw).
    • Right Side: Descriptions or examples of these machines (e.g., “Used to lift loads by applying force on one side”).
  1. Install Conductive Nails or Pins:
    • Place nails or pins beneath each simple machine label on the left.
    • Similarly, place nails or pins below each description or example on the right.
  2. Set Up the Circuit:
    • For each correct pair (simple machine and its description/example):
      • Connect a wire between the nails for the matching pair.
      • Include an LED and a buzzer in the circuit.
      • Use resistors to limit current for the LEDs.
    • Connect the entire circuit to a 9V battery.
  3. Ensure Unique Connections:
    • Use separate circuits for each pair to ensure that only the correct match completes the circuit and activates the LED and buzzer.
  4. Test the Model:
    • Verify that the LED lights up and the buzzer sounds only when a correct match is made.

How It Works:

Student Interaction:

  • The student connects a wire or clip from a simple machine (on the left) to its correct description/example (on the right).
  1. Feedback:
    • Correct Match: The LED lights up, and the buzzer sounds, indicating success.
    • Incorrect Match: No response, encouraging the student to try again.

Examples for the Match Board:

  1. Lever:
    • Description: “A rigid bar pivoted on a fulcrum to lift or move loads.”
    • Example: See-saw or crowbar.
  2. Pulley:
    • Description: “A wheel with a grooved rim used to lift heavy objects by pulling.”
    • Example: Flagpole pulley.
  3. Inclined Plane:
    • Description: “A slanted surface used to move heavy loads with less effort.”
    • Example: Ramp.
  4. Wheel and Axle:
    • Description: “A wheel attached to a central axle that rotates together to move objects.”
    • Example: Rolling cart.
  5. Wedge:
    • Description: “A device with a sloped surface used to split objects.”
    • Example: Axe blade.
  6. Screw:
    • Description: “An inclined plane wrapped around a shaft to hold objects together or lift.”
    • Example: Jar lid.

This match board concept simplifies learning by combining physics principles with hands-on interaction, engaging both visual and auditory senses.

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