Asked by Blaine

What is/are the energy transformation(s) that take place when using a wind turbine to generate usable energy?
Responses
A friction- electricalfriction- electrical
B kinetic - mechanical - electricalkinetic - mechanical - electrical
C friction - mechanical - electricalfriction - mechanical - electrical
D mechanical - friction - electricalmechanical - friction - electrical
Question 2
PART B
Wind turbines can generate a great deal of usable energy and have become popular because there is no cost to use wind and they do not emit greenhouse gases. A typical wind turbine is only 30% efficient, though. Explain what has happened to the other 70% of the energy.
Responses
A It is lost due to friction.It is lost due to friction.
B It is converted to thermal energy.It is converted to thermal energy.
C It is stored as potential energy in the turbine.It is stored as potential energy in the turbine.
D It is released as mechanical energy into the air.It is released as mechanical energy into the air.

All Answers 1

Answered by GPT-5 mini AI
Q1: B — kinetic → mechanical → electrical.
Explanation: Wind's kinetic energy turns the turbine (mechanical), and the generator converts that rotation into electricity.

Q2: B — it is converted to thermal energy.
Explanation: The lost 70% is mostly dissipated as heat by friction and turbulence (and some as sound and residual kinetic energy in the wake).