Exoplanets and Detection Methods
Physics ⇒ Earth and Space Physics
Exoplanets and Detection Methods starts at 9 and continues till grade 12.
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A planet causes its host star to move in a small orbit. This movement is best detected by which method?
A planet is detected by observing a temporary increase in the brightness of a distant star. Which detection method is being used?
A star’s light dims by 1% every 10 days. What does this suggest about a possible exoplanet?
A star’s spectrum shows periodic red and blue shifts. What does this indicate about the star?
A planet causes its host star to move in a small orbit. This movement is best detected by which method?
A planet is detected by observing a temporary increase in the brightness of a distant star. Which detection method is being used?
A star’s light dims by 1% every 10 days. What does this suggest about a possible exoplanet?
A star’s spectrum shows periodic red and blue shifts. What does this indicate about the star?
The first exoplanets were discovered around which type of star? (1) Main-sequence star (2) Pulsar (3) Red giant (4) White dwarf
Which method can detect exoplanets that do not transit their host star from our viewpoint? (1) Transit method (2) Radial velocity (3) Direct imaging (4) Both 2 and 3
Which method is best for detecting exoplanets at large distances from Earth? (1) Transit method (2) Radial velocity (3) Gravitational microlensing (4) Direct imaging
Which method is most likely to detect Earth-sized planets in the habitable zone? (1) Transit method (2) Radial velocity (3) Direct imaging (4) Astrometry
Fill in the blank: The ________ method can provide information about an exoplanet’s atmosphere by analyzing the starlight that passes through it during a transit.
The ________ method can detect exoplanets by measuring the periodic Doppler shift in a star’s spectrum.
The ________ method detects exoplanets by observing the gravitational effect of a planet on its host star’s motion.
The ________ method is most effective for finding massive planets in wide orbits.
True or False: Exoplanets can only be detected if they are larger than Jupiter.
True or False: Exoplanets have only been found in our own galaxy.
True or False: Gravitational microlensing can detect exoplanets even if they do not orbit bright stars.
True or False: The astrometry method is currently the most successful technique for finding exoplanets.
