The lecture on the [[Keynote lectures/Earth|Earth is part of a series on the radiation astronomy and geophysics of the Earth.

File:01 atlantic quakes noland900.jpg
The gravity model of the North Atlantic ocean basin reveals tectonic history in sharp detail. Red dots show the location of past earthquakes of magnitude 5.5 or higher. Credit: David Sandwell, Scripps Institution of Oceanography.

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Quiz

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1 Which of the following is an atmospheric science?

meteorology
climatology
humidity
temperature
oceanography
mineralogy

2 Yes or No, The natural electric field of the Earth starts at its surface and extends inward to the core.

Yes
No

3 Which of the following is associated with an atmosphere?

clouds
jet streams
rain
wind
faults
lightning

4 True or False, The natural electric field of the Earth includes the electrosphere.

TRUE
FALSE

5 Which of the following is associated with hurricanes?

forecasting
paleontology
weather
cyclones
anticyclones
mineralogy
typhoons

6 True or False, The natural electric field of the Earth is caused in part by the solar wind.

TRUE
FALSE

7 Which of the following is associated with tephra?

volcanology
high altitude winds
geography
metallurgy
dust
loss of sunlight
chemistry

8 True or False, The natural electric field of the Earth has a negative charge at the surface of the Earth and a positive charge at the ionosphere.

TRUE
FALSE

9 Which of the following is associated with aeronomy?

botany
chemical composition
technology
physical properties
agriculture
ionization
biochemistry
oceanography
radiation from space

10 True or False, The natural electric field of the Earth has a gradient of the about 200 volts/meter just above the Earth's surface.

TRUE
FALSE

11 Complete the text:

Match up the letter for the object name the radio or radar image below:
Sun - A
Mercury - B
Venus - C
Earth - D
Moon (South Pole) - E
Moon (North Pole) - F
Moon (850 micron thermal emission) - G
Mars (North Pole cross section) - H
Toustatis - I
Jupiter - J
Saturn - K
Titan - L
Interstellar medium - M
Milky Way - N
3C 98 - O
3C 31 - P
3C 380 - Q
Moon (self radiation) - R
NGC 4151 - S
GRS 1915 - T
M87 - U
3C 279 - V
IRC+10216 - W
Boomerang nebula - X
R Sculptoris - Y
 

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File:3C 380 bent.jpg

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File:Bhexplode merlin big.gif

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File:Allsky408.jpg

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File:Nhsc2010-011a.jpg

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File:Moon 4panels2 col.jpg

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File:M87 jet Hubble.gif

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File:Sun5GHz.jpg

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File:3c279 mosaic lo.jpg

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File:Ngc4151stis.gif

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File:Jupiter radio image.jpg

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File:Moon at 850 microns.gif

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File:HIsky.jpg

 

 

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12 True or False, The natural electric field of the Earth has a gradient of the about 200 volts/meter just below the Earth's surface.

TRUE
FALSE

13 Complete the text:

Match up the letter of the spherical object with each of the possibilities below:
Sun - A
Mercury - B
Venus - C
Earth - D
Moon - E
Mars - F
Ceres - G
Jupiter - H
Callisto - I
Europa - J
Ganymede - K
Io - L
Enceladus - M
Titan - N
Uranus - O
Titania - P
Neptune - Q
Triton - R
Pluto - S
 

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14 True or False, The natural electric field of the Earth just below the ionosphere reduces to close to a zero gradient.

TRUE
FALSE

15 Complete the text:

Match up the violet or violet containing image with the object letter:
Sun - A
Venus - B
Earth - C
Moon - D
Mars - E
Jupiter - F
Ganymede - G
Io - H
Saturn - I
Dione - J
Titan - K
Uranus - L
Ariel - M
Miranda - N
Triton - O
Eta Carinae - P
NGC 5584 - Q
 

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File:Blueberrysun friedman 1296.jpg

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16 True or False, An approximately 5,000 kg vehicle would need at least 3,300 Coulombs of charge (probably negative) stored onboard to be repelled by the Earth's surface.

TRUE
FALSE

17 Which geological phenomena are associated with Earth?

lava-spewing volcanoes
sulfur volcanoes
plate tectonics
water oceans
liquid methane oceans
silicate minerals

18 A terrestrial planet is composed primarily of?

19 True or False, The atmosphere of the Earth rises no more than 20 km above the surface.

TRUE
FALSE

20 Which of the following are observatories on Earth?

Chandra X-ray Observatory
Big Bear
TRACE
Kodaikanal
the Hubble
Lomnický štít
McMath-Pierce
SOFIA

21 True or False, A sunrise may be detected by an airborne observatory.

TRUE
FALSE

22 Which of the following are observatories on Earth?

Chandra X-ray Observatory
Giza Pyramids
TRACE
Tuorla Observatory
the Hubble
Aldershot Observatory
Stonehenge
SOFIA

23 True or False, The Earth is the fourth planet out from the Sun.

TRUE
FALSE

24 Which of the following are radiation astronomy phenomena associated with the apparent liquid-object Earth?

rain
snow
hail
neutron emission
polar coronal holes
meteor emission
rotation


Hypotheses

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  1. Charge can be acquire or dissipated into the Earth's atmosphere at sufficient speeds to allow landing and take-off without collisional effects of a repellor vehicle.

See also

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