WorksheetsAstronomy - Galaxies and the Sun
Total questions: 20
Worksheet time: 11mins
Where does fusion occur naturally?
Underwater
All around us
In the radioactive waste
In the core of stars, like our sun
Which atoms combine together during fusion reactions in a main sequence star like our sun?
Helium and Hydrogen atoms
Hydrogen atoms
Hydrogen and Lithium atoms
Hydrogen and Carbon atoms
__________________ is the process in which two or more smaller nuclei combine to create a larger, more stable nuclei.
Nuclear Decay
Nuclear Fission
Nuclear Fusion
None of the above
Which force allows for high pressure and temperatures inside the sun?
Gravity
Pulling Force
Magnetic Force
Electromagnetic
Stars are in which which state of matter?
Solid
Liquid
Gas
Plasma
What is a huge collection of of gas, dust, billions of stars, planets and other celestial objects?
A star
A planet
A galaxy
A comet
A star between 8 and 20 solar masses will become a
Black Hole
White Dwarf
Neutron Star
Majestic Turtle
Identify which of the following trends is observed in the Hertzsprung- Russell Diagram for Main Sequence stars.
The luminosity of stars is indirectly proportional to the temperature of stars.
There is no correlation between luminosity and temperature of a star.
As the star's temperature increases, the luminosity increases as well.
As the star’s luminosity decreases, the temperature of the star increases.
The image taken by the Solar Dynamics Observatory’s Atmospheric Imaging Assembly (AIA) shows in great detail a solar feature called and described as
a balloon-shaped volume of high-energy gas being ejected from the corona, called a coronal mass ejection.
a violent, eruption of high-energy particles called solar flares.
a gigantic loop or arch called solar prominence
a cooler region on the photosphere called a sunspot.
(a) is NOT a layer of the solar atmosphere.
Name this phenomenon that occurs on the surface of photosphere.
Granule
Sunspots
Prominence
Solar flare
Name this phenomenon that occurs in the northern or southern atmosphere of the earth.
Rainbow
Sunspots
Aurora
Corona
Name the earth's protection from the solar wind.
Earth's atmosphere
Earth's gravity
Earth's electromagnet
Earth's magnetosphere
A star that is greater than 20 solar masses will become a
Black Hole
White Dwarf
Neutron Star
Elliptical Galaxy
