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Energy Conversion

Science Unit 2 Lesson 1

QuestionAnswer
What is a device? Something made for a particular purpose
If a device plugs into the wall it needs…. Electrical energy
Where does electrical energy come from? Burning fuel
What is a fuel? A material that releases energy as heat when it burns
What releases energy as heat when it burns? Fuel
Name some common fuels: coal, natural gas, petroleum, wood
What is the process of burning a fuel to produce heat & light? Combustion
What is combustion? The process of burning a fuel to produce heat & light
What combines with fuel during combustion? Oxygen
What kind of change occurs that releases energy stored in the fuel? Chemical
When fuel is burned what kind of energy is occurring? Chemical
What is a big use of fuel? Transportation
How do you know combustion has occurred after driving a car? Touch the hood- it will feel hot
What causes substance to form new substances during combustion? The initial substance combines with oxygen
When coal is burning _______ energy changes to _____ that turns water into steam. Chemical——-> heat
What is a turbine? A device that spins as the gas flows and changes the heat energy
What is a device that spins as gas flows and changes the heat energy? Turbine
When hot steam blows through a turbine and causes the turbine to spin, what types of energy do we see? Heat to kinetic
What is a generator? A device that changes the energy of motion into electrical energy
What device changes the energy of motion into electrical energy? Generator
When a turbine spins an electric charge is created. What types of energy do we see? Kinetic to electric
What is another way to use chemical energy? A battery
How does a battery use chemical energy? Stores chemical energy to later be used as electric energy
Created by: user-2045275
 

 



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