Energy phantoms/Quiz

Energy phantoms/Lecture is a lecture from the radiation astronomy department on the fundamentals of observational information.

This is a quiz based on the lecture that you are free to take at any time.

To improve your score, read and study the lecture, the links contained within, listed under See also, External links, and in the or  templates. This should give you adequate background to get 100 %.

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Quiz
{Yes or No, An energy phantom is an observational phenomenon that can be described in general terms of distances and times. + Yes - No
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{True or False, A basic unit of length for measuring the diameter of the Sun is the kilometer. + TRUE - FALSE
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{Yes or No, A quantity that denotes the ability to do work and is measured in a unit dimensioned in mass × distance²/time² (ML²/T²) or the equivalent is called energy. + Yes - No
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{True or False, By assuming gravity causes the Earth and Sun to orbit each other, and assuming a mass for the Earth, a mass for the Sun can be determined from the orbital characteristics. + TRUE - FALSE
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{Yes or No, A physical quantity that denotes ability to push, pull, twist or accelerate a body which is measured in a unit dimensioned in mass × distance/time² (ML/T²): SI: newton (N); CGS: dyne (dyn) is called force. + Yes - No
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{True or False, By correlating the length of an Earth year to a fixed number of seconds, the length of time of a second can be determined. + TRUE - FALSE
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{Yes or No, In astronomy we estimate distances and times when and where possible to obtain forces and energy. + Yes - No
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{True or False, The source for apparent superluminal radiation may be superluminal acceleration. + TRUE - FALSE
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{Yes or No, Observationally, we may not know the origin of the force. + Yes - No
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{True or False, As the principal portion of the sunspot cycle corresponds well with a periodic conjunction of Venus and Jupiter, the increased electron flux to the Sun may cause the magnetic poles to reverse. + TRUE - FALSE
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Hypotheses

 * 1) Timing can be applied to changes in distance.