physics working models for science exhibitions
An escalator is a moving staircase that carries people up and down between different floors of a building. It is powered by an electric motor and works with a chain of steps that keep moving in a continuous loop. Escalators are very useful in places where many people need to move quickly, such as shopping … Read more
A Thermal Energy Generator converts heat energy into electrical energy. One simple and popular method uses a Thermoelectric Cooler (TEC) module. TEC is a small device that can generate electricity when there is a temperature difference between its two sides. In this setup, one side of the TEC is kept hot (using a candle, solar … Read more
This model demonstrates two sources of renewable energy: solar power and wind power.The solar panel on the roof (simulated by a 9V battery) powers the light inside the house, showing how sunlight can generate electricity. On the other side, the wind turbine generates electricity by spinning the fan blades, which powers the LED.This project shows … Read more
“This is a Hydraulic Gate Working Model made using syringes and cardboard.It demonstrates Pascal’s Law – the principle behind hydraulic systems. When I push the first syringe, water pressure moves the second syringe’s plunger, lifting the gate.Such hydraulic gates are used in dams, canals, and flood control systems. Materials Required: Video Steps to Make the … Read more
This is a hydraulic lift working model in a scissor shape, made using syringes and ice cream sticks/cardboard. It demonstrates Pascal’s Law, where pressure applied on a fluid in a closed container is transmitted equally.When we press one syringe, the water moves into the other, pushing it out and lifting the scissor mechanism. This model … Read more
This model demonstrates how hydraulic pressure can lift heavy objects using syringes filled with water—mimicking how real cranes operate in construction and industries. This hydraulic crane works on Pascal’s Law, which states that pressure applied to a fluid is transmitted equally in all directions. The syringes use water to transfer pressure, which moves the crane’s … Read more
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