5 Written questions
5 Matching questions
- Why was adaptive optics developed?
- Are the constellations seasonal?
- In the geocentric model of the solar system developed by Ptolemy, the planets move
- According to modern atomic theory, light emitted by atoms originates from
- One difference between violet light and red light is that
- a Yes, On a summer night many of the constellation you can see are different from the constellations you can see on a winter night. But there are some constellations you can see all year long.
- b violet light has a shorter wavelength than red light.
- c in circular epicycles while the centers of the epicycles move in circular orbits around the Earth.
- d transitions of electrons between electron levels of the same atom.
- e to compensate for image distortion caused by the Earth's atmosphere.
5 Multiple choice questions
- collect more light from faint objects.
- shows absorption features where light has been absorbed by the atoms of the cool gas.
- at all wavelengths, with a peak at one particular wavelength (color).
- proved mathematically that light could b described by oscillating electric and magnetic fields.
- The air molecules scatter blue light better than red light, so more blue light reaches our eyes.
5 True/False questions
The charged-coupled device, now used extensively for astronomical imaging, works on what principle? → Light generates electrical charge on a computer-readable multielement array of detectors.
Kepler's first law states that a planet moves around the Sun in a(n) → elliptical orbit, with the Sun at one focus.
At what point in a planetary orbit is that planet's speed the slowest? → at aphelion.
Why were Newton's three laws so important to astronomy? → Yes, On a summer night many of the constellation you can see are different from the constellations you can see on a winter night. But there are some constellations you can see all year long.
Which of the following is a critical component of the scientific method? → testing of prediction from a scientific theory or theoretical model.