Natural electric field of the Earth/Quiz

From Wikiversity
Jump to navigation Jump to search
The Earth is electrically charged and acts as a spherical capacitor. Credit: Natural Resources of Canada.

The lecture on the natural electric field of the Earth is part of a series on the geophysics of the Earth.

You are free to take this quiz based on natural electric field of the Earth at any time.

To improve your scores, read and study the lecture, the links contained within, listed under See also and External links, and in the {{charge ontology}} and {{repellor vehicle}} templates. This should give you adequate background to get 100 %.

As a "learning by doing" resource, this quiz helps you to assess your knowledge and understanding of the information, and it is a quiz you may take over and over as a learning resource to improve your knowledge, understanding, test-taking skills, and your score.

Suggestion: have the lecture available in a separate window.

To master the information and use only your memory while taking the quiz, try rewriting the information using more familiar points of view, or be creative with association.

Enjoy learning by doing!

Quiz[edit]







  

1

True or False, The natural electric field of the Earth starts at its surface and extends inward to the core.

TRUE
FALSE

2

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

TRUE
FALSE

3

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

TRUE
FALSE

4

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

5

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

6

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

7

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

TRUE
FALSE

8

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

9

Yes or No, To rise above the Earth's surface a 5,000 kg vehicle with 3,300 Coulombs aboard would have to dissipate charge.

Yes
No

10

True or False, A 5,000 kg vehicle with say 4,000 Coulombs of negative charge aboard would probably have to dissipate charge to land on the Earth's surface.

TRUE
FALSE


Hypotheses[edit]

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

See also[edit]

External links[edit]

{{Charge ontology}}{{Radiation astronomy resources}}