Melting Chocolate with Energy Transfers Machine
Video Link: https://youtu.be/kDcK8vbwsU0
Step A- The machine starts with pushing the ball through the inclined mechanism.
Step B- The ball starts the hair dryer by hitting the button of the socket to which the hair dryer is connected.
Step C- The air blown by the hair dryer pushes another ball.
Step D- The ball falls on button of another socket to which the kettle is connected.
Step E- The kettle heats up and the hot water vapour releases as the water heats up melts the chocolate on the plate above the kettle.
Types of Energy
- Mechanical Energy: The energy of moving object.
- Gravitational Energy: The energy that an object has when it is above a surface.
- Electrical Energy: The energy of moving electrons.
- Thermal Energy: The energy of the particles inside an object.
- Chemical Energy: The form of energy stored in matter.
Energy Transformations
- Between Steps A and B, the ball travels on an inclined path from a higher place to a lower place. Here, gravitational energy is transformed into mechanical energy.
- Between Steps B and C, when the ball falling from a height hits the button connected to the hair dryer, the hair dryer works and the air coming out of the hair dryer sets the ball in motion, transforming the electrical energy into mechanical energy.
- Between Steps C and D, the ball moves with the air coming out of the hair dryer and falls from a high place to a lower place, where gravitational energy is transformed into mechanical energy.
- Between Steps D and E, when the falling ball hits the button to which the kettle is connected, the kettle turns on and heats up, transforming electrical energy into thermal energy.
- In step E, the heated water vapour in the kettle rises and melts the chocolate on the plate above the kettle, transforming thermal energy into chemical energy.
Core Competency Self-Assessment
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