18.3 electricity and magnetism cont.

__ discovered that an electric current could make a magnetic field.

• Benjamin Franklin

• Hans Christian Oersted

• Albeert Einstein

• Donald John Trump

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The first scientist to discovered an electric current from a magnetic field.

• Joseph Henry

• King Henry VIII

• Henry Ford

• Josephine Baker

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This scientist from Great Britain, published his results of the discovery of electric currents first.

• Joseph Henry

• Michael Faraday

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The process of creating a current in a circuit by a changing a magnetic field is called

• magnetic fermement

• electromagnetism calculation

• electromagnetic induction

• magnetic generalization

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An electric current is made when a magnet moves in a coil of wire and when a wire moves between the ples of a magnet.

• true

• false

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Electric motors turn electrical energy into

• mechanical energy

• gravitational pull

• solar energy

• fossil fuels

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An electric generator uses electromagnetic induction to change mechanical energy into electrical energy.

• true

• false

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How does a generator produce an electric current?

• Energy from the sunlight is absorbed by the PV cells in the pane

• A file is transmitted a few seconds at a time over the Internet.

• The fuel is injected into the combustion chamber and combined with air

• Rotates a coil of wire through a magnetic field which induces an electric current in the wire

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NGSS.HS-PS3-5

The source in nuclear power plants is

• thermal energy

• fossil energy

• hydroelectric power

• geothermal power

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A __ increases or decreases the voltage of alternating current.

• Heater

• Transformer

• Electric Pole

• Nuclear Plant