Electricity and Magnetism of the Earth

Electromagnetism is?

• one of the four fundamental interactions in nature

• includes both electricity and magnetism as elements of one phenomenon

• responsible for almost all phenomena in daily life

• all of the above

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Electromagnetism helped Albert Einstein develop?

• bifocals

• Theory of Relativity

• The light bulb

• Frequencies

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One of Michael Faraday’s main discoveries was?

• electromagnetic induction

• magnetic south

• magnetic north

• theory of relativity

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Who is known as the “Father of Science?”

• Nicolas Tesla

• Albert Einstein

• Michael Faraday

• Thales of Melitus

The magnetic field is?

• made of ions

• invisible

• blue

• part of the atmosphere

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A magnet?

• has east and west poles

• attracts or repels other objects

• does not attract iron

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Materials that can be magnetized, or strongly attracted to magnets are called?

• ferromagnetic

• composites

• magnetic

• insulators

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The magnetic field has?

• no force

• a generator

• north and south poles

• east and west poles

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Earth?

• only receives magnetic energy from the Sun

• is not magnetic at all

• is a giant electromagnet

• only receives magnetic energy from the Moon

Earth’s magnetic field is sometimes called?

• electromagnetic field

• geomagnetic field

• earthical field

• solar magnetic field