chapter 19 test

Question 1

where is the greatest air pressure

Answer 1

at sea level

Question 2

what is the name of the barometer that does not have mercury in it

Answer 2

anaroid barometer

Question 3

what is the name of the barometer that has mercury in it. How does it work

Answer 3

mercury barometer. air perssure pushed down which makes the mercury go up the tubes so that we can read it in IN or CM

Question 4

what does pressure indicate about weather

Answer 4

the more pressure the clearer it is and the more pressure the more cloudy and rainy it is

Question 5

why do people store tennis balls or food in vacuum sealed containers

Answer 5

because they are at a certain pressure. It is so the pressure does not leak

Question 6

what are the lines on a map called

Answer 6

isobars

Question 7

what do Ls and Hs mean on maps

Answer 7

the lowest number on the map is for the L and the highest number on the map is for the H

Question 8

which way does air flow

Answer 8

from high to low

Question 9

which way does the win go in the southern and northern hemispher and why does it do that

Answer 9

in the northern is goes clockwise and in the southern it goes counterclockwise because of the coriolis effect.

Question 10

low pressure(cyclone) explaon

Answer 10

low pressure ascending clouds and rain. the air moves up and the temp cools to dew point. and then we get clouds and rain.

Question 11

why doesn’t air just go straight from high pressure to low pressure areas

Answer 11

because friction and earths rotation affect the winds direction

Question 12

why is it the hottest at the equator

Answer 12

because the sun shines directly to it but on the poles the suns heat has to spread out. also since the light goes to the poles at an angle it could bounce off but at the equator its mostly absorbed

Question 12

high pressure(anticyclone) explain

Answer 12

air goes out and clockwise. the temp increases, and the relative humidity decreases and we have clear skies.

Question 13

what is the efect called that can sometiems cause snow on sunny days

Answer 13

the lake effect. it picks up humidy and then we get snow.

Question 14

what is another name for the equatorial lows

Answer 14

doldrums

Question 15

what are doldrums

Answer 15

calm area where warm air rises

Question 16

what are horse latitueds

Answer 16

calm areas of falling air

Question 17

what are the prevaiilng westerlies

Answer 17

blow away form the hosre latitudes

Question 18

what are trade winds

Answer 18

blow away from the horse latitudes towards the equator

Question 19

what are polar easterlies

Answer 19

they blow cold air away form the poles

Question 20

what would happen if the earth was not rotating. why does it not do a perfect cycle.

Answer 20

the hot air would rise and go toward the pole and it cools and sinks and then flows along the surface towards the euqator and then does the same thing. Coriolis effect

Question 21

why are their trade winds

Answer 21

hot air rises and goes to the poles it cools and sinks then air goes out to make trade winds

Question 22

describe high pressure

Answer 22

goes out and clockwise

Question 23

describe low pressure

Answer 23

goes in and counterclockwise

Question 24

what is a polar front

Answer 24

its is when the polar easterlies bump into the prevailng westerlies

Question 25

where do jet streams hang out

Answer 25

in the tropopause. It is high and the winds are very strong.

Question 26

what would happen if a jet stream comes down. It goes straight?

Answer 26

it brings the cold. if it goes stright that means it is warm

Question 27

descibe sea breeze day

Answer 27

the land heats the hot air rises. then the cold air will sink. c

Question 28

what will happen at land breeze night

Answer 28

the land cools so that the water on teh air rises and cools at the land

Question 29

how do people name winds

Answer 29

they name them based on where they come from

Question 30

valley breeze when is happen

Answer 30

it happens in the daytime. the mountains heat up quicker the hot air above the mountain becomes less dense this air sies creating a low pressure.

Question 31

when mountain breeze happen

Answer 31

at night. it cools faster gets more dense and slides down the mountain

Question 32

monsoon winds explain summer and winter.

Answer 32

winter: during winter the land is cooler than the ocean this more dense air flows over the land resulting in droughts.
summer: in the summer monsoon the land is warmer because the land warms up quicker than water so air molecules move faster thus less dense air rises, the cool air of the ocean moves onto the land bringing moisture which causes the rainy season

Question 33

describe el nino

Answer 33

every 3-7 years the warm currents become to strong and replace normally cold offshore water with warm equatorial waters.

Question 34

describe la nina

Answer 34

when surface temp of the eastern pacific are colder than avg a la nina even is triggered that has a distinct set of weather patterns.