Write the energy transformation in motor boat.

A motor

What are the various energy transformations that occur when you are riding a bicycle?

Write a note a transformers.

What kind of energy transformation takes place in an electric motor ? Name any two devices which use electric motor as an essential component of their working .

What is correct about energy transfer and energy transformation in living cells ?

[A] : Energy transformations are important for living cells. [R] : Organisms show variation and changes due to mutations and genetic recombinations.

Write the unit of energy density ?