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WorksheetsQuiz 18: Stars & Galaxies
Total questions: 20
Worksheet time: 10mins
What is the hr diagram?
A diagram that shows the grouping of stars in galaxies
A diagram that shows the distance of stars from Earth
A diagram that shows the life cycle of stars
A diagram that shows the brightness and color of stars
What is the relationship between the color of a star and its temperature?
Red stars are hotter than blue stars
Red stars and blue stars have the same temperature
The color of a star does not indicate its temperature
Blue stars are hotter than red stars
How do astronomers determine the distance of stars?
By observing the pulsation of certain stars
By sending probes to the stars
By bouncing radio waves off the stars
By measuring the brightness of the stars
What is the luminosity of a star?
The apparent brightness of a star
The intrinsic brightness of a star
The color of a star
The distance of a star from Earth
What is the hertzsprung-russell diagram?
A graph of the age versus the mass of stars
A graph of the color versus the size of stars
A graph of the distance versus the luminosity of stars
A graph of the intrinsic brightness versus the surface temperature of stars
What is the significance of constellations in astronomy?
They provide names for stars
They represent the life cycle of stars
They indicate the age of stars
They help determine the distance of stars
What is the relationship between the frequency and wavelength of light?
Frequency and wavelength are inversely proportional
Frequency and wavelength are not related
Higher frequency corresponds to shorter wavelength
Higher frequency corresponds to longer wavelength
What is the role of the North Star in navigation?
It indicates the direction of the South Pole
It indicates the direction of the North Pole
It helps determine the distance of stars
It helps determine the temperature of stars
What is the relationship between the altitude to the North Star and the northern latitude?
The altitude is always equal to the northern latitude
The altitude is half of the northern latitude
The altitude is double the northern latitude
The altitude is unrelated to the northern latitude
What is the purpose of measuring the apparent brightness and luminosity of stars?
To determine the distance of stars
To classify stars based on their size
To understand the temperature of stars
To study the life cycle of stars
What is the significance of the Big Dipper constellation?
It points to the North Star
It represents the life cycle of stars
It determines the temperature of stars
It indicates the distance of stars
What is the relationship between the size of a star and its distance from Earth?
Smaller stars are always closer to Earth
Size and distance are unrelated
Larger stars are always closer to Earth
The size of a star cannot be determined
Two stars appear to us as being the same brightness to our eye. Star A has a higher intrinsic brightness (luminosity) than Star B. Which star is further from us?
Star A
Star B
Cannot be determined
they are the same distance from Earth
This image is known as a
Black Hole
Planetary Supernova
Supernova II
Neutron Star
The minimum speed needed to a free object to escape the gravitational influence of a massive body
escape veolocity
accrection disk
gravitation
whirlpool
Formed when star explodes
minature black hole
supernovea
fusion
nova
The point in the center of the black hole where we believe that physics as we know if may cease to exist
accretion disk
singularity
supernova
quasar
