WorksheetsExoplanets Vocabulary
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Alien planets are faint, far away, and sitting right on top of their parent star, so it's difficult to get ___
a)
indirect evidence
b)
direct evidence
c)
anecdotal evidence
d)
circumstantial evidence
2.
A planet outside of our solar system that orbits a star is officially called ___
a)
an alien planet
b)
an exoplanet
c)
a martian planet
d)
a distant planet
3.
As the host star of the exoplanet makes its little circle, its light will undergo a ___
a)
polarization shift
b)
reflexive shift
c)
Mach shift
d)
Doppler shift
4.
A more massive planet pulls harder on the star, making it move ___
a)
more quickly
b)
more slowly
c)
erratically
d)
imperceptibly
5.
When a planet passes directly in front of its star, the event is called ___
a)
a transit
b)
en passant
c)
a transition
d)
a permutation
6.
The beauty of transiting exoplanets is that the amount of starlight blocked tells you ___
a)
how far away the planet is
b)
how big the planet is
c)
the density of the planet
d)
the mass of the planet
7.
If we know the planet's mass from the star's Doppler shift, we can use the planet's size to calculate ___
a)
its distance
b)
its density
c)
its luminosity
d)
its apparent brightness
8.
A gas giant like Jupiter has a relatively ___
a)
low mass
b)
high mass
c)
low density
d)
high density
9.
Designed to detect exoplanet transits, NASA launched a space-based telescope, in 2009, named ___
a)
Kepler
b)
the Hubble Space Telescope
c)
Planck
d)
the James Webb Space Telescope
10.
Like Tatooine in the Star Wars saga, we've even found planets orbiting ___
a)
massive blue stars
b)
cool red dwarfs
c)
red giants
d)
binary stars
11.
How many exoplanets are estimated to be in our galaxy alone?
a)
millions
b)
hundreds of millions
c)
billions
d)
hundreds of billions
100 %
