Exam 23: Light, Astronomical Observations, and the Sun

Discuss the features and characteristics of the Sun? Are they thought to be unique to the Sun or are they typical of other stars? How do any of these structures relate to the process of nuclear fusion which is thought to produce the Sun's energy?

The Sun produces energy by converting ________.

The first scientist to use a telescope for astronomical purposes was ________.

The Sun produces energy by converting ________ to energy.

The most conspicuous features on the surface of the Sun are dark areas called ________.

The Sun's energy results from the conversion of hydrogen nuclei into helium nuclei.

The spectra of most stars are of this type.

A(n) ________ spectrum is produced when white light is passed through a comparatively cool gas under low pressure.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

All of the world's largest telescopes are of the refracting type.

When several radio telescopes are connected together, the resulting network is called a(n) ________.

Light can be described as a stream of fast-moving particles called ________.

The Sun is composed almost entirely of two gases. They are ________ and ________.

The Sun is considered an "average star."

Compare and contrast the various types of telescopes, including radio telescopes. What are the advantages and disadvantages of each one? Are there other considerations when choosing one telescope over another besides optical clarity or magnification?

In some instances, light behaves like waves, and in others, like discrete particles.

The outermost portion of the solar atmosphere is called the photosphere.

Radio telescopes are able to detect very short wave radiation emitted by celestial objects.

The layer of the solar atmosphere directly above the photosphere is referred to as the ________.

Which of the following is NOT an advantage that radio telescopes have over optical telescopes?