Geophysics/Quiz

< Geophysics
These striations in Costa Rica on Cerro Chirripo suggest a past glacier. Credit: Poutine.

Geophysics is an lecture and article from the school of geology and physics department.

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Quiz

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1. Which of the following are involved in the weak force?

a core which emits neutrinos
Fermi's β-decay theory
26Al
undetectable with balloon-borne detectors
Gamow-Teller interactions
steady enough emission to be used as a standard for X-ray emission
observed with delta-rays in 1731
M. Fierz

2. True or False, The force of gravity is a major force on the surface of the Earth.

TRUE
FALSE

3. If energy is the impetus behind all motion and activity, which of the following are associated with power?

a launch location
a rate of change of the impetus with time
photon density
an acceleration of the impetus
neutrinos dynamically dominating baryons
a rate of change of mass

4.
3D Vector.svg
For standard basis, or unit, vectors (i, j, k) and vector components of a (ax, ay, az), what are the right ascension, declination, and value of a?
if the x-axis is the longitude of the Greenwich meridian, and ax equals ay, then RA equals 6h
if the x-axis is the longitude of the Greenwich meridian, and ax equals ay, then RA equals 3h
the value of a is given by a = \sqrt{a^2_x + a^2_y + a^2_z}
if ax equals ay equals az, then the declination is -45°
if ax equals ay equals az, then the declination is +45°

5. Complete the text:

Match up the form or type of quartz with the effect:
alpha quartz - A
coesite - B
cristobalite - C
stishovite - D
seifertite - E
tridymite - F
10 GPa and above 1200°C .
2-3 gigapascals and 700°C .
22-460°C tabular crystals .
trigonal tectosilicate .
35 GPa to 40 GPa orthorhombic
1470°C cubic or tetragonal form .

6. Complete the text:

A composite spectrum is approximately a law over at least the ≈ 5 decade wavenumber range 10-13 m-1 < wavenumber < 10-8 m-1 and that may extend to wavenumbers.

7. True or False, A calculation of energy is not possible unless a mass is involved.

TRUE
FALSE

8. When the Earth is viewed from space using X-ray astronomy what characteristic is readily observed?

the magnetic north pole
the Hudson Bay meteorite crater
the South Atlantic Anomaly
the Bermuda Triangle
solar positron events
electrons striking the ionosphere

9. True or False, A unit vector is a direction with a magnitude of one.

TRUE
FALSE

10. True or False, Electrons in the Earth's magnetosphere are energized by neutral particles from the Sun.

TRUE
FALSE

11. Radiation phenomena associated with craters include?

catena
secondary craters
checking equations about complex systems
deformed strata
electric arcs
explosions

12. True or False, Solitary electrons constitute much of the remaining 1 % of cosmic rays.

TRUE
FALSE

13. Which of the following is not a radiation phenomenon associated with a crater?

strata
elongated dust particles
high albedo
olivine
Rayleighs
volcanoes

14. Moldavite is a mineral that may be associated with what radiation astronomy phenomenon?

predicting the end of the Earth
determining the accuracy of local computers
meteorite impacts
demonstrating that Venus was once a comet
predicting when currently dormant volcanoes will erupt
fireballs

15. True or False, Van Allen radiation belt electrons are constantly removed by collisions with atmospheric neutrals, losses to the magnetopause, and outward radial diffusion.

TRUE
FALSE

16. Which geophysical phenomena are associated with Earth?

lava-spewing volcanoes
sulfur volcanoes
plate tectonics
bombs
liquid methane oceans
magnetic field

17. True or False, Electron density applied to free radicals is spin density.

TRUE
FALSE

18. Which of the following are associated with electromagnetics?

angular momentum transfer
solar wind
protons
electrons
the baryon neutrino
charge neutralization

19. True or False, An electron reflectometer (ER) determines the location and strength of magnetic fields from the energy spectrum and direction of electrons.

TRUE
FALSE

20. Which geophysical phenomena are associated with Earth?

weathering
lightning
calcium carbonate deposition in the oceans
neutrons from the decay chain of uranium
liquid methane oceans
shocked quartz

21. What negatively charged particles may be used as tracers of cosmic magnetic fields?

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See also

External links

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Development status: this resource is experimental in nature.
Educational level: this is a research resource.
Resource type: this resource is a quiz.
Subject classification: this is a physics resource .
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