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WorksheetsSemester Review-Q2
Total questions: 20
Worksheet time: 11mins
Which 2 statements correctly describes a spiral galaxy?
It has a bulge in the center
It lacks a regular shape
It contains few old stars and has little gas and dust
Its arms contain gas and dust and has many stars
It is a perfect circle with no arms or structure
Which of the following stages are where fusion is beginning?
Star forming nebula
Main sequence star
Supergiant
Protostar
A galaxy has a smooth, oval shape and contains mainly older stars with little gas and dust. What type of galaxy is this?
A galaxy has no definite shape. What type of galaxy is it?
Which star is in the main sequence?
Rigel
Antares
Tau Centi
Companion of Sirius
Which star is bright and hot?
Rigel
Antares
Tau Centi
Companion of Sirius
What is the Big Bang Theory?
The Big Bang Theory explains how Earth is round
A scientist notices that the light from a distant galaxy shifts toward the red end of the spectrum. What does this tell us?
When a siren moves away from you, the pitch seems lower. This is most like which astronomical phenomenon?
Blueshift
Redshift
Fusion
What is the last stage in a small-mass star life cycle?
If a star’s light waves appear shifted toward blue, what conclusion can be made?
Scientists believe that the universe started as... (Select 2)
Small
Hot
Bright
Large
Cool
Denver is located far from large bodies of water, while San Diego is along the Pacific coast. Which statement best explains why these two places have different climates?
What type of air rises at the equator?
Warm
Cold
High
Low
Warm air rising causes what type of atmospheric pressure?
Which area is experiencing a long period of cloudy skies and prolonged rain/snow?
Richmond, VA
Savannah, GA
Denver, CO
Birmingham, AL
What usually happens to the weather when a cold front passes through an area?
Light, steady rain continues for several days with no change in temperature.
Heavy rain or storms occur, temperatures drop, and the sky clears after the front passes.
What factors cause a hurricane to increase its intensity? (Select 2)
More humidity
land
Warm ocean waters
More dry air
What is an occluded front?
A cold air mass traps a warm air mass, lifting it and causing clouds and rain.
Warm air slowly rises over cold air, causing light rain.
The front does not move, bringing cloudy skies and steady rain.
Two cold air masses meet, generating clear skies and calm weather.
Which air is denser?
Warm
Cold
