ASTRO 1 EXAM 3 NEWEST 2025 ACTUAL
EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
1. An "Onion Skin" Shell Burning Structure Develops In
A) A Neutron Star.
B) A Star Like The Sun.
C) A Star Much More Massive Than The Sun.
D) A Star Much Less Massive Than The Sun.
E) A White Dwarf.
A Star Much More Massive Than The Sun.
2. What Is A T-Tauri Star?
A) A Star That Will Become A Planetary Nebula
B) A Star In An Open Star Cluster
C) A Type Of Protostar
D) One Of The Most Massive Stars On The Main Sequence E) A Star In A Globular Star Cluster
A Type Of Protostar
3. A Large Luminosity Star
,A) Is Always At A Larger Distance Than A Small Luminosity Star
B) Emits More Light Than A Low Luminosity Star
C) Is Always Redder Than A Star With A Small Luminosity
D) Is At A Lower Temperature Than A Small Luminosity Star
E) Is Always At A Smaller Distance Than A Small Luminosity Star
Emits More Light Than A Low Luminosity Star
4. The Stars In The Halo Of Our Galaxy Are
A) Not Affected By Reddening And Extinction.
B) In A Very Flat Distribution.
C) Older And Bluer Than Those In The Disk.
D) Never In Globular Clusters.
E) Older And Redder Than Those In The Disk.
E) Older And Redder Than Those In The Disk.
5. If A Red Giant Appears The Same Brightness As A Red Main Sequence Star, Which One Is
Further Away?
A) The Red Giant
B) We Can't Tell
C) It Depends On The Phase Of The Moon
D) The Main Sequence Star
, E) They Are At The Same Distance
A) The Red Giant
6. If You Could Convert The Earth (Mass 6×1027g) Into Pure Energy, How Much Energy Would Be
Produced (In Ergs) Compared To What The Sun Produces Over Its Whole Life (1.2×1051 Ergs)?
The Speed Of Light C = 3 × 1010 Cm/S.
A) More Than 10 Times More
B) Three Times Less
C) Roughly The Same Amount
D) Three Times More
E) More Than 10 Times Less
E) More Than 10 Times Less
7. Which Star Is The Furthest Away If All Have The Same Apparent Brightness?
A) Type G Main Sequence Star
B) Type F Main Sequence Star
C) Type M Main Sequence Star
D) Type A Main Sequence Star
E) White Dwarf
D) Type A Main Sequence Star
8. The Heaviest Nuclei Of All Are Formed
EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
1. An "Onion Skin" Shell Burning Structure Develops In
A) A Neutron Star.
B) A Star Like The Sun.
C) A Star Much More Massive Than The Sun.
D) A Star Much Less Massive Than The Sun.
E) A White Dwarf.
A Star Much More Massive Than The Sun.
2. What Is A T-Tauri Star?
A) A Star That Will Become A Planetary Nebula
B) A Star In An Open Star Cluster
C) A Type Of Protostar
D) One Of The Most Massive Stars On The Main Sequence E) A Star In A Globular Star Cluster
A Type Of Protostar
3. A Large Luminosity Star
,A) Is Always At A Larger Distance Than A Small Luminosity Star
B) Emits More Light Than A Low Luminosity Star
C) Is Always Redder Than A Star With A Small Luminosity
D) Is At A Lower Temperature Than A Small Luminosity Star
E) Is Always At A Smaller Distance Than A Small Luminosity Star
Emits More Light Than A Low Luminosity Star
4. The Stars In The Halo Of Our Galaxy Are
A) Not Affected By Reddening And Extinction.
B) In A Very Flat Distribution.
C) Older And Bluer Than Those In The Disk.
D) Never In Globular Clusters.
E) Older And Redder Than Those In The Disk.
E) Older And Redder Than Those In The Disk.
5. If A Red Giant Appears The Same Brightness As A Red Main Sequence Star, Which One Is
Further Away?
A) The Red Giant
B) We Can't Tell
C) It Depends On The Phase Of The Moon
D) The Main Sequence Star
, E) They Are At The Same Distance
A) The Red Giant
6. If You Could Convert The Earth (Mass 6×1027g) Into Pure Energy, How Much Energy Would Be
Produced (In Ergs) Compared To What The Sun Produces Over Its Whole Life (1.2×1051 Ergs)?
The Speed Of Light C = 3 × 1010 Cm/S.
A) More Than 10 Times More
B) Three Times Less
C) Roughly The Same Amount
D) Three Times More
E) More Than 10 Times Less
E) More Than 10 Times Less
7. Which Star Is The Furthest Away If All Have The Same Apparent Brightness?
A) Type G Main Sequence Star
B) Type F Main Sequence Star
C) Type M Main Sequence Star
D) Type A Main Sequence Star
E) White Dwarf
D) Type A Main Sequence Star
8. The Heaviest Nuclei Of All Are Formed
