simple-circuit-working-model-using-safety-pins-for-science-project-exhibition

how to make simple circuit using safety pins, cardboard, LED lights, and a 9V battery

by

Creating a simple circuit using safety pins, cardboard, LED lights, and a 9V battery is a great science project to understand basic electronics.

Here’s how to make it:

Materials Needed:

  1. Cardboard
  2. Safety pins (metal ones)
  3. LED lights (preferably with built-in resistors)
  4. 9V battery
  5. Insulated copper wire
  6. Tape
  7. Scissors or utility knife
  8. Marker

Steps by Steps Video Instructions:

simple circuit using safety pins

1. Prepare the Base:

  • Cut a piece of cardboard to serve as the base of your circuit.
  • Draw the outline of your circuit on the cardboard using a marker. Plan where you want to place the LED lights, battery, and safety pins.

2. Connect the LED Lights:

  • Insert the LED lights into the cardboard at the desired positions.
  • Use tape to secure the LEDs in place.
  • Cut two small pieces of insulated copper wire for each LED light.
  • Bend one end of each wire into a hook shape.
  • Use the hook-shaped ends to attach the wires to the legs of the LED lights.
  • Tape the wires securely to the cardboard.

3. Add the Safety Pins:

  • Insert safety pins into the cardboard at appropriate points to act as switch contacts.
  • Ensure the pins are positioned to make contact with the wires connected to the LED lights.
  • Space the safety pins so that they can be easily connected by a conductive object (e.g., another safety pin).

4. Connect the Circuit:

  • Cut a piece of insulated copper wire long enough to connect the positive terminal of the battery to one LED light.
  • Strip the insulation from the ends of the wire.
  • Use one end of the wire to connect the positive terminal of the battery to one leg of the first LED light.
  • Connect the other leg of the LED light to one safety pin using another piece of wire.
  • Repeat this process for the second LED light, connecting it to another safety pin.
  • Connect the negative terminal of the battery directly to one of the safety pins using a piece of wire.

5. Test the Circuit:

  • Insert the 9V battery into the holder and connect it to the circuit.
  • Touch a safety pin to the other safety pin connected to the LED light. This should complete the circuit and light up the LED.
  • Try the same with the other safety pin.

This simple circuit with safety pins demonstrates the basic principles of electrical circuits and can be a fun and educational science project.

https://www.youtube.com/@diypandit

Leave a Comment