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1404
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Astronomy
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Dec 6, 2023
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PHYS 1404: Spring 23 - Chapter 1 – Here and Now –Assignment
© 2018-2023 Lone Star College All Rights Reserved.
Write your Name.
Do not alter header or question numbers. Abide by LSC Academic Integrity.
Name: Alexis Diaz
Please follow all instructions to receive full credit.
Answer the following questions
using the syllabus and Chapter 1 in the text book.
Replace the blank
with your
response and
don’t remove the header
.
Please respond in
bold type
.
When you have
completed the assignment to your satisfaction, upload and submit it.
You can
submit it several times if you choose but the last submission before deadline is the
one I will grade.
1.
The Research paper will be
15
% of your final grade.
2.
What is your instructor’s email address?
Sarada.Moturu@Lonestar.Edu
3.
What days and times can you work with your instructor in WebEx?
M, W 10 am – 12 pm; T, Th, Su 9 – 10 pm
4.
What chapters from the text book are covered in this course?
Ch 1, 2, 3 & 4,Ch
5, 6, 7 & 8, Ch 18, 19, 20 & 21, Ch 22, 23, 24 & 25
5.
Where do find out what your grades are in the class?
In D2L under grades tab
6.
If you are having a technical problem with D2L, where should you go for help?
Student Success – Technology Support & Resources
7.
Read the statement on academic integrity in the syllabus
. Posting of any of course
material with Lone Star College ownership and copyright, at any of the note
sharing or social media or web-site for controlled or public sharing is in direct
violation of LSC copyright policy and the student is legally liable for resultant
consequences, including dropping from the class. Type your name in the space
below, indicating that you understand and will abide by the academic integrity
policies of this college and class.
Alexis Diaz
PHYS 1404: Spring 23 - Chapter 1 – Here and Now –Assignment
© 2018-2023 Lone Star College All Rights Reserved.
Write your Name.
Do not alter header or question numbers. Abide by LSC Academic Integrity.
8.
What is the average distance between the Earth and the Sun in meters?
149,597,870,700 meters
9.
In physics and astronomy, we use scientific notation as a way of writing very big
and very small numbers using powers of ten.
Write the number 97,318,000 in
scientific notation.
9.7318 × 10^7
10. Write the number 0.00048 in scientific notation.
4.8 × 10^-4
11.
What is the name of the nearest star to the Sun, and how far away is it?
Proxima
Centauri, it is 4 light years away.
12. List the major planets in the solar system, in order of increasing distance from the
Sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
13. True/false: Our solar system is the only one in the galaxy with planets.
False
14. Our Sun is part of a larger grouping of stars called the
Milky Way
Galaxy.
15. Light from the Sun takes approximately eight minutes to reach the Earth, which is
1 AU from the Sun.
A comet is discovered, and it takes light 40 mins to reach the
comet from the Sun.
Approximately how far away from the Sun is the comet in
AU?
5AU
16.
What is the definition of a light-year and its value in Km?
The distance that light
travels in one year, and 9500000000000 km
17.
One of the Asteroids orbit 5.6 AU from the Sun. What is that distance in
kilometers?
837748075.92
PHYS 1404: Spring 23 - Chapter 1 – Here and Now –Assignment
© 2018-2023 Lone Star College All Rights Reserved.
Write your Name.
Do not alter header or question numbers. Abide by LSC Academic Integrity.
18. What is the difference between the Solar System, the Galaxy and the Universe?
The sun and its orbiting objects, including the eight planets, comets, and
asteroids, are found in the Solar System. The Galaxy contains 100 billion
stars, including the sun, as well as massive clouds of gas and dust. All
physical matter and energy are present in the universe. The galaxies in its
clusters are its basic building blocks.
19. Go to “Current events” tab in your course Content page. Read “Saturn’s iconic
rings are disappearing”. Write 8 – 10 sentence summary of this article.
New research by NASA's Cassini mission has revealed new insights into the
age and origin of Saturn's rings, which formed about 4.6 billion years ago.
The rings are largely composed of ice, with a small percentage belonging to
rocky dust created in space by broken asteroid fragments and
micrometeoroids. The Cassini data has led to a new finding published in the
journal Icarus, which supports the theory that Saturn's rings appear long
after its initial formation. The researchers believe that the rings were still
forming when dinosaurs roamed the Earth. Saturn's rings are largely
composed of ice, with a small percentage belonging to rocky dust created in
space by broken asteroid fragments and micrometeoroids. The researchers
obtained data about how many meteoroids pollute the rings, the mass of the
rings themselves, and the rate at which material from the rings rains down
on the planet. All data pointed to the same finding about the younger age of
Saturn's rings. Previous research has suggested that the rings may disappear
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PHYS 1404: Spring 23 - Chapter 1 – Here and Now –Assignment
© 2018-2023 Lone Star College All Rights Reserved.
Write your Name.
Do not alter header or question numbers. Abide by LSC Academic Integrity.
within 100 million years. The researchers estimate that the rings will only be
around another few hundred million years at most. The researchers also
speculate that the dark rings around Neptune and Uranus were once larger
and brighter, similar to how Saturn's rings are now. The creator of Saturn's
rings is still unknown, but it is possible that gravitational instability
destroyed some of the icy moons orbiting the giant planet, creating enough
material to be pulled into rings of material encircling Saturn. Future
missions to study Saturn's moons could uncover more information about the
events that created the rings and lead to other discoveries
.
20. Go to “Current events” tab in your course Content page. Read “This Photo of
Earth and the Moon Was Shot from 71 Million Miles Away”. Write a 5 – 10
sentence summary of how this article relates to Chapter 1.
A new photo captured by NASA's OSIRIS-REx satellite shows Earth and the Moon
from 71 million miles away. The photo was taken on December 19th, 2018, using the
spacecraft's NavCam 1 camera. Earth and the moon are visible on the bottom-left
side, while Bennu is just 27 miles away. The photo was captured by overexposing the
asteroid with a 5-second exposure. OSIRIS-REx, launched in 2016, is scheduled to
return Earth with samples from Bennu on September 24th, 2023.