Moon lab- astronomy | Geography homework help


Objectives: The aim of this lab is to get you to recognize the bearings of the moon and the relationships betwixt the Sun, Earth, and Moon.

 

I. Screen and Day

 

 

For the tallest individuality of this lab you get be pretending that your leadership is the Earth (the North Pole get be the top of your leadership, and the South Pole get be underneathneathneath your chin), and a imponderous bulb get be the Sun.

SETUP: (Yes you unquestionably insufficiency to do this -- but don't annoy, it's fun, and gentle!) You get insufficiency a fairly ebon locality (the eboner the better!) delay one gleaming lamp at environing leadership plane occasion you are developeding or sitting. A separate gleaming, uncovered imponderous bulb works best.

1.

Stand (or sit) facing the imponderous bulb (Sun). The diagram underneathneath illustrates this setup as seen from balance your leadership, so from balance the North Pole of the Earth. Which of the noteed residuums evidences the aspect of a idiosyncratic who lives on the end of your nose?

abcdef

 

2.

Which of the noteed residuums evidences the aspect of a idiosyncratic who lives on your left ear?

A

B

C

D

E

F

Not evident from this vantage object

 

3.

Let's say you wanted to screen in the screen face of Earth in the balance diagram. Which of the computeed diagrams underneathneath shows the screen face of Earth rightly screend in?

1

2

3

4

5

 

4.

As seen from balance the North Pole, the Earth rotates counter-clockwise. Refer to the noteed residuums in the tallest diagram at the top. Evidence the establishs on your leadership wless it is the subjoined seasons of day:

 

noon

sunset

midnight

sunrise

no season -- this is the imponderousbulb, not a residuum on your leadership

 

5.

What season of day would it be for a idiosyncratic that lives on the end of your nose when you are instantly confrontment the imponderous bulb?

12am midnight

3am

6am (sunrise)

9am

12pm noon

3pm

6pm (sunset)

9pm

 

 

6.

Turn your perfect in establish a region divergence to the left (counterclockwise as ended from the top down), but do not propose the imponderousbulb. Now the imponderous bulb should be off your frequented ear. Now what season is it for someone who lives on the end of your nose?

12am midnight

3am

6am (sunrise)

9am

12pm

noon

3pm

6pm (sunset)

9pm

 

 

7.

Turn your perfect another region alter to the left. Now the imponderous bulb get be instantly astern you. Now what season is it for someone who lives on the end of your nose?

12am midnight

3am

6am (sunrise)

9am

12pm

noon

3pm

6pm (sunset)

9pm

 

8.

Turn your perfect another region alter to the left. Now the imponderous bulb get be off your left ear. Now what season is it for someone who lives on the end of your nose?

12am midnight

3am

6am (sunrise)

9am

12pm

noon

3pm

6pm (sunset)

9pm

 

II. Moon Phases

 

Now we are going to inquire the bearings of the moon. Withhold up a little globe to illustrate the moon at environing leadership plane, commencement custody not to obstruct your end of the face of the globe confrontment you delay your fingers. (Ideally, if you feel advent to a little styrofoam globe delay a little hole in it, establish this globe on the tip of an upfrequented pen or pencil, so none of the globe's demeanor is obstructed.) You get be encroachment the Moon out at arm's elongation and describing its manifestatlon at incongruous objects in its revolution. You get alter encircling in establish, oceantenance the moon at arm's elongation, to pretend the revolution of the Moon (the globe) encircling Earth (you). The imponderous from the imponderousbulb get pretend sunlight. Stand as far separate from the imponderousbulb as practicable, stagnant staying delayin your incorrectly ebon locality, and fabricate enduring you can alter in establish all the way encircling delayout hitting anything delay your patent arm.

 

Below is a diagram, as seen from balance your leadership (balance the Earth's North Pole), of the Moon's revolution encircling the Earth. (Note: it is NOT drawn to lamina.)  In this diagram the Earth rotates (spins) counter-clockwise in establish, and the Moon revolutions the Earth in a counter-clockwise bearing. Each of these motions are shown delay arrows. To illustrate that the sun is very far separate, the sunimponderous is illustrateed as arrows future in from off the face of the diagram. You get heed prospect incongruous computeed aspects in the moon's revolution that we get be examining in this employment: Each residuum fits delay a incongruous "phase" of the moon, as listed delayout-delay underneathneath the diagram.

 

 

 

 

 

9.

Copy the diagram balance onto a bleak lot of pamphlet. Fabricate it agreeable and ample so you feel copiousness of locality to annotate it. Now screen the "night" face of the Earth as seen from interinterspace tall balance the North pole of the Earth, which is the perspective of the diagram. Leave the "day" face of Earth bleak. Which of the noteed diagrams underneathneath shows how the Earth should be screend?

Type the note of your solution in the box less:

 

10.

Now epistle the "noon", "midnight", "sunrise", and "sunset" objects on the Earth in your diagram. This is a abridgment of what you should feel already illustrationd out in the interrogations in Divorce I, balance.

Which of the noteed residuums on the zoom-in diagram of Earth underneathneath best illustrates each of those seasons?

Type one note for each:

Noon:

Midnight:

Sunrise:

Sunset:

 

11.

Does the compute of moons shown in the diagram fit to the compute of moons that are revolutioning the Earth in true conduct? EXPLAIN in one or two phrases.

 

12.

In the diagram you feel drawn on your pamphlet, screen in the "night" face of the MOON, leaving the day face bleak, for each of the computeed aspects 1-8 of the moon in its revolution, as seen from interspace balance the Earth and Moon. Use the corresponding perspective as the diagram less (frequent from the top of this page), which you should feel anteriorly copied onto your pamphlet.

 

 

For each computeed divergence, evidence which of the noteed options underneathneath best matches how you screend that divergence, using the corresponding perspective as the diagram balance.

Type one note for each 1:    2:    3:    4:   5:    6: 7:8:

Letters may be frequent or not used at all.

 

13.

Now comes the ocean divorce -- and the fun divorce! -- of this employment, wless you get in-fact SEE the bearings of the moon instantly.

Using your leadership (Earth), globe (Moon), and imponderous bulb (Sun) mould, you get pretend the Moon at incongruous establishs in its revolution and see what the bearings heed enjoy instantly. Starting delay the Moon at aspect 1, flourish the Moon through one revolution encircling the Earth by corporeally altering your perfect counterclockwise (left) in establish, and see what the moon heeds enjoy at each aspect. (Make enduring the immaterial of your leadership doesn't descend on the moon at aspect 5 -- that would be an shade! That doesn't betide most months.) Here is a video curtail of a idiosyncratic demonstrating.

Shade in the ebon faction of each divergence so it matches the manifestatlon of the Moon as seen from the Earth at the prospect aspects in the diagram.

For each divergence, evidence which of the noteed options balance (A through N) best matches how you screend that divergence to illustrate how you saw it in your corporeal hypocrisy.

Type one note for each 1:   2:    3:    4:   5:    6:    7:   8:

 

Letters may be frequent or not used at all.

 

 

14.

In a few phrases, portray how the apparent outsequence of the moon fluctuates during one revolution as seen from the Earth. Include in your explanation: (a) Which side of the Moon (left or frequented) is illuminated during the manifold stages? (b) How does the indubiboard amount of considerableness fluctuate balance season? (c) Do the corporeal extent and outline of the Moon fluctuate during its revolution?

 

 

 

III: Times of Visibility

 

Now you get investigate what seasons of day the incongruous bearings are evident from Earth. The diagram you feel been creating on pamphlet get be your most serviceable implement for solutioning the interrogations that flourish. If you feel not effected it already, be enduring you feel the day/screen immaterials drawn on Earth and Moon, the seasons of day epistleed at the incongruous residuums of Earth, and the names of the incongruous bearings epistleed on the diagram. A expeditious scan at this diagram get number you delayout-delay what season of day (or screen) a consecrated bearing is tall balancehead. For the bearing in interrogation, equiboard heed at the season of day it is on the residuum on Earth instantly underneathneathneath that bearing. That is the season when that bearing is tall balancehead, consequently an contemplateer-on developeding at that residuum would feel to heed approximately right up to see that bearing of the moon. Divers hours succeeding, the moon get stagnant be in that bearing, but the Earth (and the contemplateer-on developeding on it) get feel rotated counterclockwise, so the moon get not be tall balanceleadership for that contemplateer-on anymore. As ended by that contemplateer-on, the moon get feel answered to propose inferior in the sky, on its way to enhancement. For acceleration visualizing this, or delay any of the interrogations that flourish, exemplification delay the interactive life at http://astro.unl.edu/naap/lps/animations/lps.html. You can space the life by importunate "start/pause life", or you can increment the life one hour (or detailed, or day) at a season.

 

15.

Approximately how crave does it select for the moon to adequate one revolution encircling the Earth? Pick one:

1 hour

1 day (24 hours)

1 week

1 month (a "moonth")

 

16.

How frequent bearings get the Moon go through in that season?

 

17.

About how crave does it select the Earth to hinge uninterruptedly on its axis? Pick one:

1 hour

1 day (24 hours)

1 week

1 month (a "moonth")

 

18.

How frequent bearings get the Moon go through in that season? AND How far get the moon feel proposed in its revolution? Explain in one phrase or so.

 

19.

As ended from Earth, what is the one PRIMARY deduce that the moon mounts and sets in our sky? Explain in one phrase.

 

20.

Between one elevation and posterior enhancement, approximately how crave is the moon evident in the sky at a season? Pick one:

A) 1 hour

B) 12 hours

C) 24 hours

D) 1 week

E) 2 weeks

F) 1 month

 

21.

Now you get put concomitantly entirething you feel literary from the anterior individualitys in adharmonious to illustration out when each moon bearing mounts, sets, and transits through its tallest object in the sky. This is one of the biggest divorces of this lab! It get select some season and attempt to illustration it out. Be enduring to use the suggests at the preface of this individuality, and your solutions to antecedent interrogations. If you get stuck, fascinate interrogate your educationist ASAP. Keep in inclination that the moon mounts and sets in our sky equiboard enjoy the sun does (as do the stars and galaxies we can see from Earth!) and for the corresponding deduce -- consequently the Earth hinges on its axis. So the Moon is evident for approximately 12 hours at a season on any consecrated day, equiboard enjoy the sun is. However, WHICH 12 hours it is evident varies throughout the lunar cycle, as the moon is in incongruous divorces in its revolution delay regard to the Sun and Earth, and is for-this-reason repeatedly in a incongruous divorce of the sky than the Sun.

 

At what season of the day would the New Moon be tall balancehead? (Technically the moon is never directly balanceleadership -- we are heeding for the season of day when the moon is tallest in the sky. For an contemplateer-on in the northern hemisphere, it would be located internal the South.) We seduce this season the transit season for the Moon. At what season does the Leading Region Moon transit? The Bountiful Moon? The Third Region Moon?

 

To solution these interrogations, after a whilewithhold the moon globe out in your influence at the aspect in interrogation, say Leading Quarter. Then alter your leadership to mention what season the Moon mounts and sets for a idiosyncratic who lives on the end of your nose (heed at wless the sun is to illustration out the season, referring to your diagram if indispensable). Record your solutions to the transit interrogations in the board underneath, then increase out the cessation of the board by determining the mount and set seasons of the immodest listed bearings.

Your solution choices for all twelve boxes are "noon", "sunset", "midnight", and "sunrise". Spelling counts!

 

 

 

Lunar Phase

Moon mount season

Moon transit season

Moon set season

First Quarter

 

 

 

Full Moon

 

 

 

Third Quarter

 

 

 

New Moon

 

 

 

 

22.

Could you see the Leading Region Moon at Sunrise?

yes

no

 

23.

Could you see the Leading Region Moon equiboard antecedently midnight?

yes

no

 

24.

Could you see the Third Region Moon at Sunset?

yes

no

 

25.

Could you see the Third Region Moon equiboard forthcoming sunrise?

yes

no

 

IV: Eclipses

 

An shade can happen when the Sun, Earth, and Moon sequence up. A lunar shade is when the Moon passes into the Earth's immaterial, and a brilliant shade is when the Moon's immaterial descends on the Earth. Stagnant using your leadership to illustrate Earth, globe to illustrate Moon, and imponderousbulb to illustrate Sun, act out twain kinds of shades. Use your frequented observations of simulating these two processes to solution the subjoined immodest interrogations.

 

 

 

 

 

 

26.

At what moon bearing(s) can a lunar shade happen? Check all that apportion.

A) new moon

B) tallest region

C) bountiful moon

D) third region

E) none of these

 

27.

At what bearing(s) can a solar shade happen? Check all that apportion.

A) new moon

B) tallest region

C) bountiful moon

D) third region

E) none of these

 

28.

Having pretendd each of these kinds of shades delay your mould Moon, which kind was easier to fabricate? Based on this, which kind do you fancy would be seen by more nation on Earth? Explain why.

 

29.

Why don't we see brilliant and lunar shades entire month? Explain in divers phrases. Insufficiency a suggest? Check here.orhere.

 

V. Viewing the Earth from the Moon

 

Imagine for a avail that you are an astronaut developeding on the demeanor of the Moon and you can see the Earth from wless you are developeding.

Refer to your diagram to acceleration you visualize this seat for the interrogations underneath.

 

30.

Would the Earth answer to feel bearings as ended by an astronaut on the Moon?

yes

no

 

31.

If an astronaut on the Moon currently heeds a waxing gibbous Earth, what would someone on Earth see when observing the Moon? Portray in one phrase or so.

 

32.

If the Moon is in the tallest region bearing as ended from Earth, in what bearing would an astronaut on the Moon heed for Earth?

A) new Earth

B) waxing crescent

C) tallest region

D) waxing gibbous

E) bountiful Earth

F) rottenness gibbous

G) third region

H) rottenness crescent

 

33.

Develop an gentle way to illustration out the Earth's bearing consecrated the lunar bearing OR the lunar bearing consecrated the Earth's bearing. Portray your classification underneath.

 

34.

If an contemplateer-on on Earth is observing a perfect brilliant shade, what would an astronaut on the face of the Moon confrontment Earth see? Portray thoroughly in 1-2 phrases.

 

35.

If an contemplateer-on on Earth is observing a lunar shade, what would an astronaut on the face of the Moon confrontment Earth see? Portray the perfect fact from rouse to terminate, including entirething the astronaut on the Moon would see and how crave it would developed. Aim for 2-3 bountiful phrases.