Science - Quiz 20 Flashcards

Ionosphere; Magnetosphere

1
Q

the extremely powerful radiation that comes from deep space

A

cosmic rays

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2
Q

normal atmospheric pressure at sea level

A

1013 (millibars)

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3
Q

on the side away from the sun Earth’s magnetic field stretches out to form the…

A

magnetotail

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4
Q

doughnut-shaped regions of charged particles encircling the equator

A

Van Allen (radiation belts)

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5
Q

this term refers to either of the two locations where an object’s magnetism is located

A

pole

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6
Q

a special state of matter made of a mixture of electrons and positive ions

A

plasma

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7
Q

the region of the earth’s magnetic field that is influenced by the solar wind

A

magnetosphere

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8
Q

the stream harmful, charged particles sent out by the sun

A

solar wind

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9
Q

how the ionosphere affects radio communications

A

it reflects radio waves to increase their range

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10
Q

why do auroras only occur at high latitudes?

A

charged particles enter the atmosphere only near the magnetic poles

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