Wind to Lamp Energy Chain

In the picture

1. 1Wind turbine rotor: moving air turns the blades.
2. 2Generator: the rotating shaft produces electricity.
3. 3Battery bank: stores electrical energy chemically.
4. 4Electric motor on the cart: electrical energy turns the wheels.
5. 5Glowing lamp: electricity becomes light and heat.

Examples

• A phone charged from a solar panel and then used to play music.
• An electric bike battery powering the motor and warming slightly during a ride.

Quiz: Wind to Lamp Energy Chain (Age 18)

1. 1

   In this energy chain, how does energy move from one part to the next?

   • It is transferred but never converted into another form.
   • It is stored indefinitely without moving to the next part.
   • It is converted and transferred from one part to the next.
2. 2

   At each stage of the energy chain, what happens to some of the energy?

   • It is transformed into extra electrical energy.
   • It is sent back to the wind turbine.
   • It is lost to the surroundings as heat.
3. 3

   What does the battery bank do in this energy chain?

   • It stores electrical energy chemically.
   • It converts electrical energy into mechanical motion.
   • It converts electrical energy into light and heat.

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.