earthquake alarm working model project explanation in english

This simple earthquake alarm demonstrates how basic principles of physics and electricity can be applied to create a practical device for detecting seismic activity.

Earthquake Alarm working model explanation

  • Stable Base and Ramp: Cardboard provides a structure to hold the metal ball / Nut and conductive strips.
  • Metal Ball: Acts as a movable conductor that responds to vibrations.
  • Conductive Strips: Positioned so that the ball /Nut can complete the circuit by touching both simultaneously.
  • Circuit Completion: During an earthquake, the ball /Nut moves and touches the strips, closing the circuit and triggering the buzzer.

How Earthquake Alarm Works?

earthquake alarm science project explanation
  1. In normal conditions, the metal ball /Nut stays on the ramp or cradle, not touching the conductive strips simultaneously, so the circuit remains open, and the buzzer is off.
  2. During an earthquake or significant tremor, the vibration causes the metal ball /Nut to roll down the ramp or move in the cradle.
  3. As the ball rolls, it eventually touches both metal strips, completing the circuit.
  4. This closed circuit allows current to flow from the battery through the buzzer, activating it and producing a sound.

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