Pre-Lab Quiz: Planet Puzzlers

exoplanet-20080227-browse

Discuss each question with your team. Be prepared to explain the reasoning behind your team's answers after the quiz.

  1. How recently did astronomers begin to discover planets outside our solar system?
    • Within the last twenty years
    • The early 1900s
    • The 1800s
    • The 1600s
  2. Which of the following is not a method used by astronomers to find exoplanets?
    • Directly imaging the planets using telescopes
    • Measuring the Doppler shift of the star to detect small 'wobbles' caused by orbithing planets
    • Measuring changes in the intensity of the star caused by transiting planets
    • Using radio waves to 'ping' extra-solar planets like a ship's sonar
  3. Roughly how many exoplanets have astronomers discovered thus far?
    • 10
    • 100
    • 1,000
    • 10,000
  4. Which of these strange types of objects have astronomers discovered outside of our solar system?
    • Large gas giants with very small orbits called 'Hot Jupiters'
    • Planets in orbit around stellar remnants like neutron stars and pulsars
    • Massive terrestrial planets called 'Super Earths'
    • Free-floating planets that drift through interstellar space
    • All of the above
ай 2016 University of Iowa