Previous tests Flashcards
Full Moon
Sun, Earth, Moon
New Moon (sun, moon, earth) -waxing crescent -first quarter -waxing gibbous Full Moon (sun, earth, moon) -waning gibbous -third quarter -waning crescent (light is right to left - so crescent on the left like a C - bc light is darkened right to left too)
What position would you expect to see the moon straight south at sunset?
first quarter
Which position would a total solar eclipse occur
New moon
Which position would moon be due south at 6 am?
third quarter
When the moon is at third quarter, how much of total surface of moon is illuminated directly by sun’s light?
1/2
Waxing gibbous looks like
right side is 3/4 covered - light moves right to left across moon - Dark C on left
What do we call the time from a 3rd quarter moon to the next 3rd quarter moon?
Synodic month
When we refer to something as sidereal it is with respect to what?
stars
By your watch (solar time) how long does it take the earth to make one rotation on its axis?
23 h 56 m
To be a partial lunar eclipse which of the following must be true
Moon passes through Penumbra, with only a part passing through umbra
As we watch the night sky on a single night the stars appear to move overall
East to west
Newton developed a general law described the physical attraction of two objects. Which of the following does not affect the gravitational force btwn the sun and earth?
Radius of earth (does not in ?)
- IS AFFECTED BY:
- —mass of earth, mass of sun, distance from the center the sun to the center of earth
Which of the following is the longest in terms of time?
Lunar or synodic month
-compared to solar day, sidereal day, sidereal month
How many times a year will the sun be directly overhead (at zenith) in Provo, Utah?
0
Holding a ball above ground and it is not moving it is
Potential energy
1 samuel 20:5 speaks of new moon. Which is description of new moon described in scriptures?
First thin crescent moon seen in the evening at twilight
Go out and see bright star Sirius rising over mountains at 10 pm. You wait two weeks and go out to look for sirius in night sky. Which describes position of sirius?
It rose at 9:04 pm
T/F planets orbit slower the further they are from the sun?
TRUE
T/F planets orbit slower the further they are from the sun?
TRUE
Which is highest energy photons in the entire electromagnetic spectrum
Gamma rays
If earth were to shrink to half its current radius, what would happen to the surface gravity (or the acceleration of earth’s surface?)
It would increase
Standing at Honolulu HI and its dark. The position of Honolulu on earth’s latitude is 21.3 N and longitude is 157.8 W - how high above the horizon is the north star?
21.3 degrees
Standing on surface of mars with telescope, which planet would show phases similar to the moon as i look at them through my telescope
Earth
If we saw hydrogen line in a stars spectra moving toward us, where would we expect to see the hydrogen alpha line in the spectra?
It would be moved to the blue by an amount based on the velocity approach