ASTR 1000 Exam 1- Astronomy 1000 Exam 1 Questions with Answers Study Guide.

1. The frequency of a wave is: (a) Measured in seconds (b) The distance between crests of the wave (c) The distance befiveen troughs of the wave (d) The number of peaks passing by any point per second (e) The same for all forms of electromagnetic radiation 2.Sunspots are observed as: (a) Dark spots in the Solar corona (b) Bright regions in the Solar corona (c) Dark spots on the Solar photosphere (d) Bright regions on the Solar photosphere (e) Places where no light is emitted by the Sun 3. From short to long wavelengths, the correct order of the electromagnetic spectrum is: (a) Ultraviolet, X-rays, visible, infrared, radio (b) X-rays, visible, ultraviolet, infrared, radio (c) Ultraviolet, X-rays, visible, radio, infrared (d) X-rays, ultraviolet, visible, infrared, radio (e) Radio, infrared, visible, X-rays, ultraviolet 4. Planetary systems around other stars are hard to detect primarily because: (a) Dim light from the planet is hard to see against the glare of the star (b) Jupiter mass planets are extremely rare (c) Jupiter mass planets are fairly abundant, but often have elliptical orbits around their star (d) Massive stars are the most common type of star, and these have short lifetimes