Action and Reaction Trolley Description A compact educational model that demonstrates how propellergenerated airflow produces a reaction force to propel a small car forward. The kit includes a small motor with propeller mounted on a wheeled chassis, a switch, a baffle plate, and battery clips. It is designed for handson exploration of action and reaction principles used in jet aircraft and rockets. Key benefits Makes the physics of recoil intuitive by converting a visible airflow effect into forward motion. Simple assembly and operation enable quick classroom demonstrations and guided student experiments. Focused, durable design isolates the core principle so students can test variables such as propeller speed, baffle position, and surface friction. Main features and specifications Function: Demonstrates reaction force produced by propellergenerated wind to drive a small car forward. Drive system: Small electric motor with propeller mounted on a wheeled chassis. Controls: On off switch for easy start and stop. Power: Requires two AA batteries; battery clips are included. Batteries are not supplied and must be provided by the user. Additional parts: Baffle plate included to adjust airflow and direction. Intended use: Educational demonstration and simple experiments in physics and engineering. What is included Small car with motor and propeller installed Battery clips for two AA batteries On off switch Baffle plate Basic experimental ideas and instructions to get started How it solves problems and what makes it stand out Direct visual and tactile demonstration of Newtonian action and reaction, helping learners connect theory to observable results. Minimal components reduce setup time while preserving experimental flexibility. Includes a baffle plate to vary airflow conditions, enabling comparative tests and hypothesis exploration. Practical use scenarios Classroom demonstration: Show the connection between propeller thrust and reaction force during a physics lesson on forces and motion. Student lab activity: Have students change battery power, propeller angle, or baffle position to measure effects on distance and speed and record results. STEM hobby project: Use as a handson model for introducing basic aeronautics and rocket propulsion concepts in after school clubs or maker sessions. Experiment ideas provided Measure how changing battery power affects speed to explore energy input and motion. Adjust the baffle plate to study airflow direction and its effect on straight line travel. Use repeated trials on different surfaces to examine friction and conversion between potential and kinetic energy. Notes Batteries are required but not included. Two AA batteries must be supplied by the user. Intended for educational and hobby use to demonstrate physical principles.