Identify the energy transformations that take place in a battery-powered flashlight: (3 points)
Battery
Wires
Light Bulb
Electrical Energy
Chemical Energy
Gravitational Potential Energy
Light and Heat (Thermal) Energy
Elastic Potential Energy
The energy transformations that take place in a battery-powered flashlight are:
1. Chemical energy to electrical energy: The battery converts chemical energy stored in it into electrical energy.
2. Electrical energy to light and heat (thermal) energy: When the flashlight is switched on, the electrical energy is transmitted through the wires to the light bulb, where it is transformed into light energy. However, a portion of the electrical energy is also converted into heat (thermal) energy due to resistive heating within the wires and the light bulb.
3. Elastic potential energy to electrical energy: In some flashlights, there may be a spring-loaded switch mechanism that requires mechanical force to push and complete the electrical circuit. In this case, the initial elastic potential energy stored in the spring is converted into electrical energy once the circuit is completed.