Moon lab- astronomy | Geography homework help


Objectives: The resolve of this lab is to get you to know the deportments of the moon and the relationships among the Sun, Earth, and Moon.

 

I. Mystification and Day

 

 

For the original minority of this lab you procure be pretending that your ruler is the Earth (the North Pole procure be the top of your ruler, and the South Pole procure be inferior your chin), and a scanty bulb procure be the Sun.

SETUP: (Yes you indeed scarcity to do this -- but don't vex, it's fun, and lenient!) You procure scarcity a fairly ebon locality (the eboner the better!) succeeding a suitableness one pellucid lamp at environing ruler flatten suitableness you are be or sitting. A individual pellucid, uncovered scanty bulb works best.

1.

Stand (or sit) facing the scanty bulb (Sun). The diagram adown illustrates this setup as seen from balanceacme your ruler, so from balanceacme the North Pole of the Earth. Which of the communicationed dregss declares the aspect of a idiosyncratic who lives on the end of your nose?

abcdef

 

2.

Which of the communicationed dregss declares the aspect of a idiosyncratic who lives on your left ear?

A

B

C

D

E

F

Not distinguishable from this vantage summit

 

3.

Let's say you wanted to cloud in the mystification verge of Earth in the balanceacme diagram. Which of the reckoned diagrams adown shows the mystification verge of Earth truly cloudd in?

1

2

3

4

5

 

4.

As seen from balanceacme the North Pole, the Earth rotates counter-clockwise. Refer to the communicationed dregss in the original diagram at the top. Declare the situates on your ruler wshort it is the subjoined occasions of day:

 

noon

sunset

midnight

sunrise

no occasion -- this is the scantybulb, not a dregs on your ruler

 

5.

What occasion of day would it be for a idiosyncratic that lives on the end of your nose when you are troddenly confrontment the scanty bulb?

12am midnight

3am

6am (sunrise)

9am

12pm noon

3pm

6pm (sunset)

9pm

 

 

6.

Turn your wnook in situate a locality foe to the left (counterclockwise as purposeed from the top down), but do not provoke the scantybulb. Now the scanty bulb should be off your proper ear. Now what occasion 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 wnook another locality incverse to the left. Now the scanty bulb procure be troddenly rearwards you. Now what occasion 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 wnook another locality incverse to the left. Now the scanty bulb procure be off your left ear. Now what occasion 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 search the deportments of the moon. Restrain up a slender spshort to delineate the moon at environing ruler flatten, presentation caution not to artranquillity your purpose of the verge of the spshort confrontment you succeeding a suitableness your fingers. (Ideally, if you entertain similarity to a slender styrofoam spshort succeeding a suitableness a slender nook in it, situate this spshort on the tip of an upproper pen or pencil, so none of the sphere's deportment is arrested.) You procure be usurpation the Moon out at arm's protraction and describing its manner at incongruous summits in its sphere. You procure incverse about in situate, maintenance the moon at arm's protraction, to assume the spshort of the Moon (the sphere) about Earth (you). The scanty from the scantybulb procure assume sunlight. Stand as far afar from the scantybulb as practicable, peaceful staying succeeding a suitablenessin your inadequately ebon locality, and fabricate secure you can incverse in situate all the way about succeeding a suitablenessout hitting anything succeeding a suitableness your expanded arm.

 

Below is a diagram, as seen from balanceacme your ruler (overacme the Earth's North Pole), of the Moon's spshort about the Earth. (Note: it is NOT drawn to flake.)  In this diagram the Earth rotates (spins) counter-clockwise in situate, and the Moon spheres the Earth in a counter-clockwise superscription. Each of these motions are shown succeeding a suitableness arrows. To delineate that the sun is very far afar, the sunscanty is delineateed as arrows future in from off the verge of the diagram. You procure mention prospect incongruous reckoned aspects in the moon's spshort that we procure be examining in this training: Each dregs suits succeeding a suitableness a incongruous "phase" of the moon, as listed instantly adown the diagram.

 

 

 

 

 

9.

Copy the diagram balanceacme onto a utter behalf of tract. Fabricate it fine and wide so you entertain profusion of locality to annotate it. Now cloud the "night" verge of the Earth as seen from room violent balanceacme the North pole of the Earth, which is the perspective of the diagram. Leave the "day" verge of Earth utter. Which of the communicationed diagrams adown shows how the Earth should be cloudd?

Type the communication of your confutation in the box short:

 

10.

Now dedicate the "noon", "midnight", "sunrise", and "sunset" summits on the Earth in your diagram. This is a resume of what you should entertain already aspectd out in the inquirys in Deal-out I, balancehead.

Which of the communicationed dregss on the zoom-in diagram of Earth adown best delineates each of those occasions?

Type one communication for each:

Noon:

Midnight:

Sunrise:

Sunset:

 

11.

Does the reckon of moons shown in the diagram suit to the reckon of moons that are sphereing the Earth in legitimate existence? EXPLAIN in one or two passages.

 

12.

In the diagram you entertain drawn on your tract, cloud in the "night" verge of the MOON, leaving the day verge utter, for each of the reckoned aspects 1-8 of the moon in its sphere, as seen from room balanceacme the Earth and Moon. Use the similar perspective as the diagram short (usual from the top of this page), which you should entertain anteriorly copied onto your tract.

 

 

For each reckoned foe, declare which of the communicationed options adown best matches how you cloudd that foe, using the similar perspective as the diagram balancehead.

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

Letters may be usual or not used at all.

 

13.

Now comes the main deal-out -- and the fun deal-out! -- of this training, wshort you procure really SEE the deportments of the moon troddenly.

Using your ruler (Earth), spshort (Moon), and scanty bulb (Sun) pattern, you procure assume the Moon at incongruous situates in its spshort and see what the deportments face affect troddenly. Starting succeeding a suitableness the Moon at aspect 1, thrive the Moon through one spshort about the Earth by substantially inclineing your wnook counterclockwise (left) in situate, and see what the moon faces affect at each aspect. (Make secure the sham of your ruler doesn't decverse on the moon at aspect 5 -- that would be an outrival! That doesn't fall most months.) Here is a video curtail of a idiosyncratic demonstrating.

Shade in the ebon element of each foe so it matches the manner of the Moon as seen from the Earth at the prospect aspects in the diagram.

For each foe, declare which of the communicationed options balanceacme (A through N) best matches how you cloudd that foe to delineate how you saw it in your substantial pretence.

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

 

Letters may be usual or not used at all.

 

 

14.

In a few passages, narrate how the apparent outverse of the moon diversifys during one spshort as seen from the Earth. Include in your explanation: (a) Which side of the Moon (left or proper) is illuminated during the diverse stages? (b) How does the manifest amount of largeness diversify balance occasion? (c) Do the substantial dimension and outline of the Moon diversify during its sphere?

 

 

 

III: Times of Visibility

 

Now you procure defy what occasions of day the incongruous deportments are distinguishable from Earth. The diagram you entertain been creating on tract procure be your most conducive machine for confutationing the inquirys that thrive. If you entertain not executed it already, be secure you entertain the day/mystification shams drawn on Earth and Moon, the occasions of day dedicateed at the incongruous dregss of Earth, and the names of the incongruous deportments dedicateed on the diagram. A sharp glance at this diagram procure disclose you instantly what occasion of day (or mystification) a dedicated deportment is violent balancehead. For the deportment in inquiry, proper face at the occasion of day it is on the dregs on Earth troddenly inferior that deportment. That is the occasion when that deportment is violent balancehead, consequently an spectator be at that dregs would entertain to face almost trodden up to see that deportment of the moon. Diverse hours later, the moon procure peaceful be in that deportment, but the Earth (and the spectator be on it) procure entertain rotated counterclockwise, so the moon procure not be violent balanceruler for that spectator anymore. As purposeed by that spectator, the moon procure entertain answered to provoke inferior in the sky, on its way to enhancement. For acceleration visualizing this, or succeeding a suitableness any of the inquirys that thrive, test succeeding a suitableness the interactive life at http://astro.unl.edu/naap/lps/animations/lps.html. You can action the life by urgent-compulsory "start/pause life", or you can increment the life one hour (or searching, or day) at a occasion.

 

15.

Approximately how hanker does it follow for the moon to ended one spshort about the Earth? Pick one:

1 hour

1 day (24 hours)

1 week

1 month (a "moonth")

 

16.

How multifarious deportments procure the Moon go through in that occasion?

 

17.

About how hanker does it follow the Earth to adapt unintermittently on its axis? Pick one:

1 hour

1 day (24 hours)

1 week

1 month (a "moonth")

 

18.

How multifarious deportments procure the Moon go through in that occasion? AND How far procure the moon entertain provoked in its sphere? Explain in one passage or so.

 

19.

As purposeed from Earth, what is the one PRIMARY argue that the moon melts and sets in our sky? Explain in one passage.

 

20.

Between one prominence and forthcoming enhancement, closely how hanker is the moon distinguishable in the sky at a occasion? Pick one:

A) 1 hour

B) 12 hours

C) 24 hours

D) 1 week

E) 2 weeks

F) 1 month

 

21.

Now you procure put conjointly completething you entertain versed from the anterior minoritys in ordain to aspect out when each moon deportment melts, sets, and transits through its violentest summit in the sky. This is one of the biggest deal-outs of this lab! It procure follow some occasion and trial to aspect it out. Be secure to use the suggests at the inception of this minority, and your confutations to antecedent inquirys. If you get accumulate, delight canvass your schoolmistress ASAP. Keep in recollection that the moon melts and sets in our sky proper affect the sun does (as do the stars and galaxies we can see from Earth!) and for the similar argue -- consequently the Earth adapts on its axis. So the Moon is distinguishable for approximately 12 hours at a occasion on any dedicated day, proper affect the sun is. However, WHICH 12 hours it is distinguishable varies throughout the lunar cycle, as the moon is in incongruous deal-outs in its spshort succeeding a suitableness honor to the Sun and Earth, and is accordingly repeatedly in a incongruous deal-out of the sky than the Sun.

 

At what occasion of the day would the New Moon be violent balancehead? (Technically the moon is never directly balanceruler -- we are faceing for the occasion of day when the moon is violentest in the sky. For an spectator in the northern hemisphere, it would be located toward the South.) We allure this occasion the transit occasion for the Moon. At what occasion does the Original Locality Moon transit? The Liberal Moon? The Third Locality Moon?

 

To confutation these inquirys, tranquillityrain the moon spshort out in your artisan at the aspect in inquiry, say Original Quarter. Then incverse your ruler to mention what occasion the Moon melts and sets for a idiosyncratic who lives on the end of your nose (face at wshort the sun is to aspect out the occasion, referring to your diagram if requisite). Record your confutations to the transit inquirys in the consultation adown, then appoint out the tranquillity of the consultation by determining the melt and set occasions of the filthy listed deportments.

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

 

 

 

Lunar Phase

Moon melt occasion

Moon transit occasion

Moon set occasion

First Quarter

 

 

 

Full Moon

 

 

 

Third Quarter

 

 

 

New Moon

 

 

 

 

22.

Could you see the Original Locality Moon at Sunrise?

yes

no

 

23.

Could you see the Original Locality Moon proper precedently midnight?

yes

no

 

24.

Could you see the Third Locality Moon at Sunset?

yes

no

 

25.

Could you see the Third Locality Moon proper succeeding sunrise?

yes

no

 

IV: Eclipses

 

An outrival can answer when the Sun, Earth, and Moon verse up. A lunar outrival is when the Moon passes into the Earth's sham, and a light outrival is when the Moon's sham declines on the Earth. Peaceful using your ruler to delineate Earth, spshort to delineate Moon, and scantybulb to delineate Sun, act out twain patterns of outrivals. Use your trodden observations of simulating these two processes to confutation the subjoined filthy inquirys.

 

 

 

 

 

 

26.

At what moon deportment(s) can a lunar outrival answer? Check all that exercise.

A) new moon

B) original locality

C) liberal moon

D) third locality

E) none of these

 

27.

At what deportment(s) can a solar outrival answer? Check all that exercise.

A) new moon

B) original locality

C) liberal moon

D) third locality

E) none of these

 

28.

Having assumed each of these patterns of outrivals succeeding a suitableness your pattern Moon, which pattern was easier to fabricate? Based on this, which pattern do you ponder would be seen by more mass on Earth? Explain why.

 

29.

Why don't we see light and lunar outrivals complete month? Explain in diverse passages. Scarcity a suggest? Check here.orhere.

 

V. Viewing the Earth from the Moon

 

Imagine for a weight that you are an astronaut be on the deportment of the Moon and you can see the Earth from wshort you are be.

Refer to your diagram to acceleration you visualize this office for the inquirys adown.

 

30.

Would the Earth answer to entertain deportments as purposeed by an astronaut on the Moon?

yes

no

 

31.

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

 

32.

If the Moon is in the original locality deportment as purposeed from Earth, in what deportment would an astronaut on the Moon mark for Earth?

A) new Earth

B) waxing crescent

C) original locality

D) waxing gibbous

E) liberal Earth

F) corruption gibbous

G) third locality

H) corruption crescent

 

33.

Develop an lenient way to aspect out the Earth's deportment dedicated the lunar deportment OR the lunar deportment dedicated the Earth's deportment. Narrate your classification adown.

 

34.

If an spectator on Earth is observing a entirety light outrival, what would an astronaut on the verge of the Moon confrontment Earth see? Narrate ampley in 1-2 passages.

 

35.

If an spectator on Earth is observing a lunar outrival, what would an astronaut on the verge of the Moon confrontment Earth see? Narrate the wnook circumstance from rouse to end, including completething the astronaut on the Moon would see and how hanker it would definite. Aim for 2-3 liberal passages.