5 Written questions
5 Matching questions
- According to Kirchoff's law, the continuous spectrum of light from a hot star, after passing through a cool gas cloud,
- The chemical makeup of a star's surface is usually inferred by
- In the system of celestial coordinates that matches latitude and longitude on the Earth, which in the coordinate that is equivalent to longitude?
- In the 1860s, James Clerk Maxwell carried out important investigations on the nature of light when he
- In the system of celestial coordinates that matches latitude and longitude on the Earth, which in the coordinate that is equivalent to latitude?
- a Right ascension
- b shows absorption features where light has been absorbed by the atoms of the cool gas.
- c declination
- d proved mathematically that light could b described by oscillating electric and magnetic fields.
- e spectroscopy of the light emitted by the star.
5 Multiple choice questions
- parabolic shape.
- testing of prediction from a scientific theory or theoretical model.
- in circular epicycles while the centers of the epicycles move in circular orbits around the Earth.
- rotation of Earth on it axis.
5 True/False questions
The time period between two successive passages of a planet through the position of opposition is → its synodic period.
When a solid body (or a dense gas such as a star) cools from a temperature of several thousand degrees, the color of the wavelength of maximum emission of radiation will → move steadily toward the red end of the spectrum.
Refraction is the → distance that light travels in one year.
A planet at inferior conjunction is always → closer to the Earth than the Sun is.
The ecliptic can be defined as the → distance that light travels in one year.