Question

1. scientists think the moon was formed when

a. a large object struck earth, and ejected material from the collision combined.
b. gravitational forces attracted a moon formed elsewhere in space.
c. meteoroids collected and solidified within the pull of earths gravity.
d. gases from earth escaped from the atmosphere and condensed in space.

1. in the southern hemisphere, the summer solstice occurs when the sun is

a. at the equator.
b. farthest south.
c. farthest north.
d. closest to earth.

1. an equinox occurs when

a. neither end of earths axis is tilted toward or away from the sun.
b. the north end of earths axis is tilted away from the sun.
c. the north end of earths axis is tilted toward the sun.
d. earths axis is parallel to the suns rays.

1. because the moon rotates once for each revolution around earth,

a. you see some phases more than others.
b. a different side of the moon faces earth each day.
c. you never see the far side of the moon from earth.
d. the far side of the moon is visible only during the full moon phase.

1. the amount of the lighted side of the moon you can see is the same during

a. new moon and full moon phase.
b. new moon and first quarter phase.
c. first quarter and third quarter phase.
d. full moon and third quarter phase.

1. you are less likely to see a total solar eclipse than a total lunar eclipse because

a. the moons shadow covers all of earth during a solar eclipse.
b. new moon phases occur less often than full moon phases.
c. only people on the daytime side of earth can see a solar eclipse.
d. the moons umbra only covers a small area on earths surface.

1. the different shapes of the moon seen from earth are called

a. eclipses.
b. penumbras.
c. umbras.
d. phases.

Explanation:

1. La teoría más aceptada es que la luna se formó cuando un objeto grande impactó la Tierra y el material ejectado se combinó.
2. En el Hemisferio Sur, el solsticio de verano ocurre cuando el sol está más al sur.
3. El equinoccio ocurre cuando ninguno de los polos de Earth está inclinado hacia o alejado del sol.
4. Debido a que la luna rota una vez por cada revolución alrededor de la Tierra, nunca se ve el lado opuesto de la luna desde la Tierra.
5. La cantidad de la cara iluminada de la luna que se ve es la misma durante la luna nueva y la luna llena.
6. Es menos probable ver un eclipse solar total que un eclipse lunar total porque la umbra de la luna solo cubre una pequeña área en la superficie de la Tierra.
7. Las diferentes formas de la luna vistas desde la Tierra se llaman fases.

Answer:

1. a.
2. b.
3. a.
4. c.
5. a.
6. d.
7. d.