physics working models for science exhibitions
This is a Tower Crane Working Model that demonstrates both 360° horizontal rotation using a robo motor, and vertical lifting using a slow DC motor. Such cranes are used in real construction to lift and move heavy materials. This model shows how motors, pulleys, and simple circuits help in lifting and rotating heavy loads efficiently. … Read more
This is a working model to show that salt water conducts electricity. Pure water is a poor conductor, but when salt (NaCl) is added, it dissociates into Na⁺ and Cl⁻ ions, which help carry electric current. This is why the LED/buzzer only works when salt is mixed with water. It demonstrates the concept of electrolytes … Read more
This is a Mini Lift Working Model. It uses a DC robo motor to pull a lift box up using woolen thread. The lift works like real elevators, where motors and pulleys lift the platform. The motor is powered by a 9V battery and controlled using a switch. It demonstrates basic principles of mechanical work, … Read more
This is a 3-pulley simple machine working model. It shows how pulleys reduce the amount of effort needed to lift a heavy object. The movable pulley provides a mechanical advantage, and the fixed pulleys change the direction of force. Such systems are used in cranes, wells, and elevators.” Materials Needed How to Make Simple pulley … Read more
Here are 10+ innovative working model ideas for Science Day 2025 in Physics, along with a brief introduction for each: Solar-Powered Water Pump Demonstrates how solar panels convert sunlight into electrical energy to operate a water pump. Hydroelectric Power Plant Model Uses flowing water to rotate a turbine and generate electricity, explaining hydroelectric power generation. … Read more
An electric current circuit working model demonstrates how electricity flows through a closed loop, powering devices like lights or buzzers. It also shows the difference between an open circuit (no flow of electricity) and a closed circuit (electricity flows). Key Components: Open Circuit: Closed Circuit: How the Model Works: Demonstration: Open Circuit: https://www.youtube.com/@howtofunda
A household circuit is designed to supply electricity to various appliances in a home, such as lights, fans, and other devices, while ensuring the safe flow of electricity. This working model demonstrates the basic principles of a household circuit, showing how power flows from the power source (battery) to the connected appliances through switches. Components … Read more
Objective: To create a solar street light model that demonstrates how solar energy is converted into electrical energy to power a street light (LED light). The model will include basic components such as a 9V battery, LED light, color paper, and cardboard to simulate a solar-powered system. Materials Required: Steps to Build the Solar Street … Read more
Objective: To demonstrate a simple household circuit that connects various components such as an LED light, fan, and buzzer using a 9V battery, and to show how electricity flows to power different appliances in a home. The model will be designed with color paper and cardboard for an attractive presentation. Materials Required: Steps to Build … Read more
Objective: To demonstrate the difference between conductors and insulators by creating a working circuit that uses an LED light, a buzzer, GI (Galvanized Iron) metal wire as a probe, and a 9V battery. The model will show how conductors allow electricity to flow, while insulators do not. Materials Required: Steps to Build the Conductor and … Read more
Objective To create a working model of an electric circuit to demonstrate how electricity flows through a circuit and explain the components of the circuit such as the cell, battery, connector, switch, light, and the difference between a closed and open circuit. Materials Required: Steps to Build the Model: How It Works: Cell: The cell … Read more
Objective: To build a fun and interactive buzzer wire game that tests steadiness and hand-eye coordination using simple electrical components. Materials Required: Steps to Build Buzzer Wire Game Science Project: How to Play: https://www.youtube.com/@howtofunda
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: Steps to Build Simple … Read more
Creating a hydraulic press working model using syringes is an excellent hands-on project that demonstrates the principle of Pascal’s Law in fluid mechanics. This project shows how hydraulic systems use fluid pressure to multiply force. In this case, you will use a tomato to illustrate how the press applies pressure. Objective: To build a simple … Read more
Creating a working model of the states of matter is a fun and interactive way to explain the different states (solid, liquid, gas) and the transitions between them. This project can visually demonstrate how matter changes from one state to another through processes such as heating, cooling, melting, and freezing. Below is a simple working … Read more