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physical science > Chapter 28.2 > Flashcards

Chapter 28.2 Flashcards

1
Q

a narrow band of fast-moving, high altitude air

A

jet stream

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2
Q

the apparent deflection of an object due to Earth’s rotation

A

Coriolis effect

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3
Q

a large volume of air with uniform moisture and temperature throughout

A

air mass

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4
Q

air masses interact zones called

A

weather fronts

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5
Q

is there only one jet stream in the world

A

no there are 4 total jet streams

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6
Q

how many pressure systems are there

A

2

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7
Q

what is the low pressure system also known as

A

A Low (L)

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8
Q

which direction does a low pressure system flow

A

counterclockwise

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9
Q

what are some results that a low pressure system will cause

A

air rises causing clouds to form and creates percipitation

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10
Q

what is a high pressure system also known as

A

A High (H)

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11
Q

which direction does a high pressure system flow

A

clockwise

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12
Q

what does a high pressure system cause

A

causes the air to sink, which results in clear skies

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13
Q

what are the 4 weather fronts

A

warm, cold, occluded, and stationary fronts

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14
Q

what causes a cold fronts

A

when cold air forces warm air upward in a fast and chaotic manner which creates cumulus clouds

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15
Q

what is a cold front represented by on the weather forecast

A

blue triangles

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16
Q

how are warm fronts caused

A

warm air rises gently above cold air which forms stratus-type clouds or fog

17
Q

what is the warm fronts represented by on the news

A

red triangles

18
Q

how are stationary fronts formed

A

when cold and warm air masses meet and neither front advances
can last for days
produce clouds

19
Q

how are stationary fronts represented on the news

A

semicircles and triangles alternating on top

20
Q

how are occluded fronts formed

A

a fast moving cold front overtakes a slow warm front

21
Q

how are occluded front represented on the news

A

it is purple and your triangle and semicircle will be alternating on top

physical science (16 decks)

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