WorksheetsAstro 10: The Sun
Total questions: 15
Worksheet time: 12mins
For a star, the sun's size can be considered...
exceptionally large
fairly large
average
fairly small
exceptionally small
The sun is _____ through its life cycle.
almost
about halfway
little over three quarters
around a quarter through
hardly
Hydrogen nuclei combining to form helium is referred to as nuclear
fusion
fission
fallout
decay
armageddon
The Sun's fusion reaction began with its birth, about ...
1 million years ago
200 million years ago
1.5 billion years ago
4.6 billion years ago
5 billion years ago
What accounts for the "missing" mass during nuclear fusion?
It was released as free electrons during fusion.
It was released as a free neutron.
It was released as energy.
It was annihilated.
There is no missing mass.
A large, bright feature extending outward from the Sun's surface
Flares
Star
Prominence
The second gaseous layer of the Sun's atmosphere; has a reddish color
Chromosphere
Radiation Zone
Photosphere
Convection Zone
A sudden eruption of radiation from the surface of the Sun
Prominence
Solar Flare
Suns Core
The number of Sunspots cycles from a few at high latitudes to many at lower latitudes. The number Sunspots varies with a cycle lasting…
5 years
9 years
11 years
15 years
Sun spots are areas in the photosphere that are
cooler than the surrounding gases
hotter than the surrounding gases
What are the inner layers of the Sun?
Core, Radiative zone, and Convection zone.
Crust, mantle, and core.
Core, Photosphere, and Radiative Zone.
The Sun doesn't have inner layers.
What are the outer layers of the Sun?
The Sun has only inner layers.
Photosphere, Chromosphere, and Corona.
Core, Radiative zone, and Convection zone.
Crest, Corona, Mantle.
