AST 111- Unit 2 Assesment
docx
keyboard_arrow_up
School
Central Michigan University *
*We aren’t endorsed by this school
Course
111
Subject
Astronomy
Date
Jan 9, 2024
Type
docx
Pages
3
Uploaded by MateMorningPanther30
Logan Bell
AST 111
Unit 2 Assessment
1.
True/False
Is it true or false that our solar system currently consists of the sun, 8 planets, 5 dwarf planets, nearly 200 known moons, and a host of smaller objects?
2.
Fill in the blank
____ are created as tiny solid particles that enter the Earths atmosphere from interplanetary space.
3.
Which of the following is true?
A. a typical meteor is produced by a mass of less than 3 grams
B. a typical meteor is produced by a mass of less than 10 grams
C. a typical meteor is produced by a mass of less than 1 gram, no larger than a pea
D. a typical meteor is produced by a mass of less than 33 grams 4.
True/False
The moon is the largest of terrestrial worlds.
5.
Fill in the blank
______ are objects that formed in the solar nebula as an intermediate step between tiny grains and the larger planetary objects we see today.
6.
This is known as the cloud of gas and dust from which the solar system formed
A. Comet
B. Meteorite
C. Solar nebula
D. planetesimals
7.
This term is used for any rock that has cooled from a molten state
A. Meteor
B. Igneous rock
C. Lava rock
D. Sedimentary rocks
8.
True/ False
Metamorphic rocks are produces when high temperatures or pressure alters igneous or sedimentary rock physically or chemically.
9.
Fill in the blank
About ____ kilometers of active rifts have been identifying, with average separation rate of about 5 centimeters per year.
10. When were Earth and the moon formed?
A. Between 10.8 and 11 billion years ago
B. Over 20,000 years ago
C. Roughly 6 million years ago
D. Between 4.5 and 4.6 billion years ago
11. True/ False
Most of the crust on the moon consists of silicate rocks called anorthosites.
12. Which of the following is not one of the three standard hypotheses for the origin of the moon?
A.
Fission Hypotheses
B.
Brother Hypotheses
C.
Sister Hypotheses
D.
Capture Hypotheses
13. What is the average distance of mars from the sun?
A.
333 million Kilometers
B. 2 Kilometers
C. 227 million kilometers
D. 222 million kilometers
14. How many spacecrafts have been launched to planet Venus?
A. 20 B. 23
C. 55
D. 50
15. Fill in the blank
About __ of the surface of Venus consists of lowland lava plains.
16. True/ False
Saturn is about 2 times as far away as Jupiter and takes nearly 30 years to complete one orbit.
17. The primary clouds that we see around planets in space are composed of what?
A. Ammonia crystals
B. Gas
C. Smoke
D. Cotton Balls
18. Fill in the blank
Planet ____ is 318 times more massive than earth.
19. How many moons have been discovered in the outer solar system?
A. 300
B. 200
C. 202
D. 3
20. True/ False
Is it true or false that Jupiter’s largest moons are Ganymede and Titan?
21. What objects have been revealed to be the most fascinating in the outer solar system?
A. Triton
B. Jupiter
C.
200 discovered moons
D.
Pluto and Charon
22. Fill in the blank
The largest asteroid is ___.
23. The solid chunk of ice and dust in the head of a comet is defined as what?
A. Rocks
B. Nucleus C. Asteroid
D. Clouds
24. Fill in the blank
Meteorites are debris from ___ that survive to reach the surface of the earth.
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help