Examen de Ciencias 4

14. Why does Earth not see a lunar eclipse once a month?A. Wait . . . there is a lunar eclipse every month.B. the plane of the Moon’s orbit is tilted to the plane of Earth’s orbitC. the Sun, Earth, and Moon do not line up in this order once a monthD. Because I said so.

Relative to the stars, the moon moves about ___________ eastward in the sky each night.   a. 1°   b. 5°   c. 13°   d. 27.3°   e. 29.5°

3.Please draw the picture of solar eclipse and explain solar eclipse. FIRO FIRO

H3. A total lunar eclipse is observed on December 31. Predict the next lunar eclipse. A total lunar eclipse will occur when the full moon and the nominal orbit of the moon line up together (The solution of two equations). From the following data algebraic equation for the phase of the moon and nominal orbit of the moon can be formed. A new moon (0%) was observed on December 17 and the full moon (10%) was observed on December 31 along with the nominal orbit of the moon (0%). The brimming orbit of the moon (100%) was observed on November 29. When the two equations are equal a lunar eclipse will occur. How many days from December 31 will next lunar eclipse occur? Given the coming year is a leap year - on what dates will the next 4 total lunar eclipses occur? Show the algebraic solution, any information you use.

Solar eclipse will take place when: A. the sun is between the moon and the earth B. the earth is between the moon and the sun C. the moon is between the sun and the earth D. the moon does not lie on the line joining the sun and the earth

3. The period of rotation of Mars is 1 day and 37 minutes. Determine its frequency of rotation in Hertz.

2. The period of orbit of Venus is 225 days. Determine its frequency of orbit in Hertz

The friction created when tidal forces move ocean waters over the seabeds   a. causes the lunar phases.   b. slows the rotation of Earth, gradually making the days longer   c. forces the moon to approach Earth.   d. has no effect on Earth.   e. has no effect on the moon.

If tonight the phase is waning gibbous when the Moon rises, what will be the phase one week from now?   A. third quarter   B. first quarter   C. waning crescent   D. new   E. full

Quèstion 19 The weight of 2 kilograms of iron on Earth's surface is OA. the same on the moon. B. greater on the moon. C. less on the moon. D. zero. E. None of them

15. If I notice that the Moon rises at noon on a particular day, what can I conclude about thephase of the Moon?A. third quarter moon B. new moon C. full moon D. first quarter moon

the earth is positioned between the sun and the moon in a nearly straight line. The position results in   A. Solar eclipse b. lunar eclipse c. new moon d. annular eclipse

A total solar eclipse occurs when the Moon moves between the Earth and the Sun and completelyblocks out the Sun. This phenomenon is very spectacular and attracts people from all cultures.However, total solar eclipses can also take place on other planets of the Solar System.Determine for each of the following moons if they can create a total solar eclipse on their planet

If the Moon is in the waning gibbous phase tonight, approximately how long will it be until the Moon is in the waning crescent phase? A. a month B. one week C. one day O D. three weeks E. two weeks

The Moon has radius RMoon = 1.7 x 106 m and has an angular width on the sky of 1/2° (8.7 x 10-3 radians). a.) Use this information to find the distance from Earth to the Moon. b.) Convert this answer to lightseconds. (Hint: 1 light year is 9.5-10¹5 m). c.) How far from the Earth would a ball 400x as wide as the Moon have to be placed for the Moon to just block out the ball? d.) Convert this to light minutes.

20. The diameter of the moon is 3480 km. How many moons would be need equal to the volume of the Earth. Radius of Earth is 6380 km. a. 94.3 b. 34.7 с. 73.4 d. 49.3

1- What time is it when the hour angle is 30°.

ment with telescopes Question #2: Which statement explains how a lunar eclipse happens? A. The sun casts a shadow on Earth. B. Earth casts a shadow on the sun. C. Earth casts a shadow on the moon. D. The moon casts a shadow on Earth.

That the moon has no magnetic field implies that   a. the moon is spinning too slowly to produce a magnetic field.   b. the interior of the moon is too hot to produce a magnetic field.   c. the crust of the moon is so thick that the magnetic field can not get out of the interior.   d. the moon’s core contains little if any molten iron.   e. the moon is moving further from Earth.

1. The reason that there are two daily tides on Earth is that one occurs when the sun is overhead and the other when the Moon is overhead. True or False   2. Tides are approximately 24 hours apart. True or False