18.2 Magnitism and Electricity

He discovered how electricity and magnetism are related in 1820.

• Bejamin Franklin

• Isaac Newton

• Albert Einstein

• Hans Christian Oersted

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A compass needle is a ___

• magnet

• foriegn object

• theory

• satillite

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Oersted tried a few experiments with the compass and the wire. He learned that ___

• how the planets move in space

• the gravitational pull starts at the atmostphere

• electric current produced an electric current

• how magnets get their shine

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What scientist did more research with electricity and magnetism?

• Isaac Newton

• Andre-Marie Ampere

• Charles Darwin

• Carl Linnaeus

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The interaction between electricity and magnetism is called __.

• Electromagnetism

• electrochemist

• geophysics

• biochemistry

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True or False: The magnetic field produced by an electric current in a wire can move a compass needle

• True

• False

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What 2 devices make the magnetic field stronger? These devices make electromagnetism more useful.

• wires & movement

• water & gravity

• selonoid & electromagnet

• battery & plug

A coil of wire that produces a magnetic field when an electric current runs through it is called a.

• generator

• transmission

• cultivator

• solenoid

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The magnetic field of a solenoid gets stronger if it has

• less loops of wire

• more loops of wire

• more heaps of sunshine

• more batteries

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What is the name of the train that use electromagnetism?

• freight trains

• maglev trains

• locomotive trains

• street car trains