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10 week test Flashcards

1
Q

observation

A

description using your senses

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2
Q

percent error

A

a measurment of how wrong an answer is

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2
Q

inference

A

conclusion based upon observations

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3
Q

percent error formula

A

difference
————— x 100%
actual value

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4
Q

length

A

meter

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5
Q

volume

A

liter

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6
Q

mass

A

gram

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7
Q

1000x

A

kilo

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8
Q

100x

A

hecto

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9
Q

10x

A

deka

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10
Q

0.01

A

centi

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11
Q

0.1

A

deci

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12
Q

0.001

A

milli

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13
Q

earth to moon

A

239,000 miles

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14
Q

earth to sun

A

93,000,000 miles

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15
Q

coldest temperature

A

0.0000002 degrees celcius

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15
Q

avagadros number

A

6.0200000000000000000000 molecules

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16
Q

scientific notation

A

a system for writing large or small numbers accuratley

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17
Q

weight is a measure of

A

the pull of gravity on an object weight will change when gravity is different

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18
Q

your mass on the moon is

A

1/6 as much as on earth because gravity is 1/6 on the moon

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18
Q

your weight in outer space is 0 llbs because

A

there is no gravity in outerspace

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19
Q

you weigh less in the mountains because

A

gravtiy is weaker at high altitude

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19
Q

temperature

A

a measurment of the average kinetic energy of molecules

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20
Q

mass is a measure of

A

the amount of matter in an object the amount of matter is the same on the moon or on the mountains
mass is the same anywhere

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20
Q

we measure mass because

A

it does not change

20
Q

temperature is not

A

how hot or cold something is

21
Q

water freezes

A

32 degrees fareinheight
0 degrees celcius
273 degrees kelvin

21
Q

absoulute zero

A

-459 degrees fareinheight
-273 degrees celcius
0 degrees kelvin
molecular movement stops

21
Q

density

A

a measure of the packing of molecules

22
Q

slowly moving molecules

22
Q

fastly moving molecules

23
Q

the two ways to change density

A

temperature and pressure

24
Q

density is a derived measurment because

A

its a combination of measurements

25
Q

different densities

26
Q

storms typically move across the us to the northeast because

A

we are in the southwest windbelt

27
Q

dewpoint

A

temperature at wich air is saturated

27
Q

warm air holds

A

more water vapor

28
Q

cold air is

29
Q

relative humidity

A

percentage of saturation

30
Q

evaporation

A

a cooling process

31
Q

sling physcrometer - dry bulb

A

air temperature

31
Q

wet bulb

A

usually lower because of evaporation

32
Q

lower air pressure at

A

higher altitude

33
Q

wind is caused by

A

a difference in air pressure

34
Q

cyclones

A

COUNTER CLOCKWISE AND TOWARDS CENTER
low pressure system

35
Q

anticyclone

A

CLOCKWISE AND AWAY FROM CENTER
high pressure system

36
Q

coriolis effect

A

because of earths rotation winds bend to the RIGHT in the northern hemisphere and to the LEFT in the southern hemisphere

37
Q

air mass

A

large body of air with generally the same humidity and temperature

38
Q

front

A

boundary between different air masses
different densities dont mix

39
Q

warm front

A

any time of year
moves slowly
precipitation is light and long lasting
after front passes temperature increases

40
Q

warm front

A

any time of the year
moves slowly
precipitation is light and long lastinf
after front passes temp increases

41
Q

warm front

A

half circles

42
Q

cold front

43
Q

stationary

A

circles on one side triangles on the other

44
Q

ocluded

A

circles and triangles on the same side

45
Q

temperature

A

thermometer

46
Q

air pressure

A

barometers

47
Q

wind speed

A

anemometer

48
Q

dewpoint/ relative humidity

A

sling physcrometer

49
Q

wind direction

A

weather vane

50
Q

snowfall

51
Q

rainfall

A

rain gauge

Earth science (5 decks)

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