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BFS - Meteorology > C02 - Temperature and Heating > Flashcards

C02 - Temperature and Heating Flashcards

1
Q

What is the definition of Temperature?

A

The measure of the heat energy associated with the movement and collision of molecules in a gas, liquid or solid.

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2
Q

What is the freezing and boiling point in Celsius?

A

0°C and 100°C.

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3
Q

What is the freezing and boiling point in Fahrenheit?

A

32°F and 212°F.

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4
Q

What is absolute zero in Kevin?

A

0K is -273°C.

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5
Q

How do you convert Celsius to Fahrenheit?

A

(°C x 1.8) + 32.

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6
Q

How do you convert Fahrenheit to Celsius?

A

(°F - 32) ÷ 1.8.

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7
Q

How do you convert Celsius to Kelvin?

A

°C + 273.

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8
Q

Objects which reflect are said to have ‘____’ colour surfaces, ‘____’ albedo and the temperature is ‘____’ (3)?

A
  • Light.
  • High.
  • Constant/Lower.
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9
Q

Objects which absorb are said to have ‘____’ colour surfaces, ‘____’ albedo and the temperature is ‘____’ (3)?

A
  • Dark.
  • Low.
  • Increases/Higher.
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10
Q

What is the definition of Specific Heat Capacity?

A

The amount of heat required to change a substance’s temperature by a specific amount.

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11
Q

What is the heat capacity of Water?

A

4.2 Joules.

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12
Q

What is the heat capacity of Land?

A

0.8 Joules.

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13
Q

True or False. Water takes longer to warm/cool down than Land?

A

True.

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14
Q

True or False. Solar Radiation is the main direct source of heat in our Atmosphere?

A

False.

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15
Q

How is the Atmosphere heated?

A

By Terrestrial Radiation.

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16
Q

True or False. The Atmosphere is denser at the surface or the Earth?

A

True.

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17
Q

Why does Temperature decrease with Altitude?

A

Because the warmest part of the Earth is towards the surface of the Earth.

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18
Q

What is the definition of Conduction?

A

The transfer of heat by direct physical contact between one substance and another.

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19
Q

True or False. Air is a good conductor?

A

False. It’s a poor one.

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20
Q

What is the definition of Convection?

A

The vertical transfer of heat.

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21
Q

Air being warmed by Conduction can become ‘____’ dense and ‘____’ than the surrounding air, as a result the pocket of air will ‘____’ (3)?

A
  • Less Dense.
  • Lighter.
  • Rise.
22
Q

How fast can pockets of warm air rise?

A

10,000ft per minute.

23
Q

Air being cooled by Conduction can become ‘____’ dense and ‘____’ than the surrounding air, as a result the pocket of air will ‘____’ (3)?

A
  • More Dense.
  • Heavier.
  • Sink.
24
Q

The vertical movements of air in our Atmosphere can cause what?

A

Cloud Formation.

25
Q

What is the definition of Advection?

A

The horizontal transfer of heat.

26
Q

The horizontal movements of air in our Atmosphere can cause what?

A

Advection Fog.

27
Q

What is the definition of Latent Heat?

A

The heat released or absorbed by a body without any change in its temperature.

28
Q

What will happen to the surroundings when water changes from liquid to gas?

A

Surrounds will cool.

29
Q

What will happen to the surroundings when water changes from gas to liquid?

A

Surrounds will warm.

30
Q

Define Temperature Variation?

A

The amount of Insolation according to the reflective of the Earth’s surface.

31
Q

Over a small area, there will be ‘____’ energy/surface heating?

A

More.

32
Q

Over a large area, there will be ‘____’ energy/surface heating?

A

Less.

33
Q

What are the two important Temperature Variations?

A
  • Seasonal.

- Daily Temperature.

34
Q

Define Seasonal and Latitude Variation?

A

The curvature of the Earth determines the angle of inclination of the sun’s radiation.

35
Q

The Earth’s rotational axis is tilted by how many degrees?

A

23.5°.

36
Q

Define Perihelion?

A

When the Earth is closet to the sun in January at a distance of about 91 million miles.

37
Q

Define Aphelion?

A

When the Earth is furthest from the sun in June at a distance of 95 million miles.

38
Q

When is the sun at it’s maximum in the northern hemisphere?

A

21st June.

39
Q

When is the sun at it’s maximum in the southern hemisphere?

A

21 December.

40
Q

What are the coordinates for the Tropic of Cancer and Capricorn?

A
  • 23.5N.

- 23.5S.

41
Q

What are the dates and the term given when the sun is at a maximum on the Equator (3)?

A
  • 21st March.
  • 23rd September.
  • Equinoxes.
42
Q

True or False. During the day the Surface Air Temperature increases?

A

True.

43
Q

True or False. Even at night, the Earth continues to radiate heat?

A

True.

44
Q

When is the maximum Temperature of the day?

A

1500 LMT.

45
Q

When is the minimum Temperature of the day?

A

30mins after sunrise.

46
Q

The Diurnal Variation in Temperature ‘____’ rapidly with Height above 3,000ft?

A

Decreases.

47
Q

The minimum and maximum values in Diurnal Variation depend on which three factors?

A
  • Type of Surface.
  • Wind.
  • Cloud Cover.
48
Q

True or False. In the Sea Diurnal Variation is a lot less than Land?

A

True.

49
Q

Cooler air at higher levels mixes with the warmer air at the surface, thus ‘____’ Surface Air Temperature?

A

Decreasing.

50
Q

During the day cloud cover can do what to maximum Surface Air Temperature?

A

Cool/Reduce.

51
Q

During the night what can cloud cover do to the Surface Air Temperature?

A

Reheat the surface.

BFS - Meteorology (22 decks)

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