Question

activity
in this activity, you will analyze a model and answer questions based on the transformation of energy. the system modeled in the drawing shows how energy from the sun is used to power an electric car.
the model shows how solar-powered electric cars indirectly use energy from the sun. describe the energy transformations that you see.

Explanation:

Identify the initial energy source

Using the Forms of Energy and Energy Transfer Mechanisms knowledge points, the process begins with the Sun emitting solar energy (radiant/light energy) which travels to the Earth.

Analyze the first transformation

Using the Forms of Energy knowledge point, the solar panels capture the incoming solar energy and convert it into electrical energy.

Analyze the second transformation

Using the Forms of Energy knowledge point, the electrical energy is transferred to the car's battery, where it is stored as chemical energy.

Analyze the final transformation

Using the Forms of Energy knowledge point, when the electric car is driven, the stored chemical energy in the battery is converted back into electrical energy, which the motor then converts into kinetic energy (mechanical energy) to move the car.

Answer:

The energy transformations shown in the model are:

1. Solar Energy to Electrical Energy: Solar panels capture light energy from the Sun and convert it into electrical energy.
2. Electrical Energy to Chemical Energy: This electrical energy is transferred to the battery of the electric car, where it is stored as chemical energy.
3. Chemical Energy to Kinetic (Mechanical) Energy: When the car is operated, the stored chemical energy is converted back into electrical energy to power the motor, which ultimately transforms it into kinetic energy to move the vehicle.