material
chemical, thermal, mechanical, electrical - correct answer ✔✔A coal plant converts energy from one
form to another. Which choice best represents this conversion?
Gaseous water above 100C - correct answer ✔✔What is steam?
Car Engine - correct answer ✔✔An energy conversion device can take on many forms:
car engines
electric heaters
generators
radio
etc.
A measure of the effectiveness of an energy conversion device is the Efficiency. Efficiency is defined as:
Efficiency = Useful Energy Output / Input Energy. Of the above listed energy conversion devices, which is
the LEAST efficient?
First Law - correct answer ✔✔Which law of thermodynamics states that energy can be neither created
nor destroyed?
Pennsylvania - correct answer ✔✔In 1979, a nuclear accident occurred at a nuclear power generating
facility located at Three Mile Island. Where is Three Mile Island located?
20% - correct answer ✔✔How much US electricity supply is nuclear derived?
Free Neutrons - correct answer ✔✔What causes the U235 nucleus to split?
0.35 - correct answer ✔✔In a typical power plant, the boiler operates at an efficiency of 90% , the
turbine operates at an efficiency of 40% , and the generator operates at an efficiency of 98%. What is
the overall efficiency of the power plant?