Electricity Generation

What does the Law of Conservation of Energy state?

• Energy can be created and destroyed.

• Energy can neither be created nor destroyed, only transformed from one form to another.

• Energy can be destroyed but not created.

• Energy can be created but not transformed.

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What is the most common method of generating energy currently in use?

• Transforming chemical energy into mechanical energy.

• Transforming electrical energy into mechanical energy.

• Transforming mechanical energy into electrical energy.

• Transforming solar energy into electrical energy.

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True or False: In order to get an electric generator to work, something has to spin a coil of wire.

• True

• False

True or False: In order to get an electric generator to work, you must use heat to spin a coil of wire.

• True

• False

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NGSS.MS-PS3-3

What is the purpose of blowing on the propeller in the generator/ motor activity?

• To cool down the motor

• To make the propeller spin

• To test the strength of the propeller

• To spin the wire coil inside the motor

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What happened to the propeller when the battery was connected?

• The propeller detached from the motor

• The propeller started to spin

• The propeller changed color

• The propeller remained stationary

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What happened to the voltage when the propeller on the propeller and motor model was turned?

• The voltage increased

• The voltage decreased

• The voltage remained the same

• The voltage reversed direction

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Explain what is happening inside the motor when it was connected to a battery?

• The motor converts electrical energy into light

• The motor converts electrical energy into heat

• The motor converts electrical energy into mechanical energy

• The motor converts mechanical energy into electrical energy

How could the science demonstrated in the motor and propeller model be used to develop the technology to power the carbon capture facility discussed in the Engage activity?

• By using a device similar to the model to generate electricity from wind power

• By using the motor to increase carbon emissions

• By using the motor to capture carbon directly from the air

• By using the motor to power the fans and pumps in the facility

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What is the main difference in the various methods used to generate electricity using the model of the motor and the propeller?

• The type of electricity produced

• The method used to spin the wire coil inside the motor.

• The size of the motor

• The color of the propeller

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