What energy conversions take place in a steam engine?

What energy conversions take place in the following when they are working? Microphone

What energy conversions take place in the following when they are working? Electrical toaster.

What is the energy conversion take place in a loud speaker?

State the energy conversion taking place in a solar cell.

Write the energy conversion in a steam engine and wind turbine.

Write the energy conversion that place in a hydropower plant.

(a) What is mechanical energy ? (b) What kind of energy changes take place in the bodies of living beings, so as to produce mechanical energy.

How does energy change take place in a physical change? Explain.

What energy transformation takes place when a ball rolls down a hill?

What energy change takes place in a dc motor ? On what principle does it work? State one factor to increase its speed of rotation.