PSC 121
GAGE
SPRING 2004
NAME ____________________________
DATE ____________________________
QUIZ 4
I.
Multiple Choice: select the best response for each question or statement below.
(36)
_____ 1.
What phase of the moon will rise at about PM and be highest in the sky at
midnight?
a.
New
b.
First Quarter
c.
Waxing Crescent
d.
Third Quarter
e.
Full
_____ 2.
a.
b.
c.
d.
_____ 3.
a.
b.
c.
d.
e.
_____ 4.
a.
b.
c.
d.
_____ 5.
a.
b.
c.
d.
Which of the following alignments of the Earth, Moon, and Sun would have to
occur for an observer to see a lunar eclipse?
Sun, Earth, Moon
Sun, Moon, Earth
Moon, Sun, Earth
none of the above
An observer at the North Pole
sees a mixture of 40% circumpolar stars and 60% non-circumpolar stars
sees a mixture of 60% circumpolar stars and 40% non-circumpolar stars
sees a mixture of 50% circumpolar stars and 50% non-circumpolar stars
sees no circumpolar stars
sees only circumpolar stars
The length of an Earth day is determined by the time required for approximately
one:
Sun rotation
Sun revolution
Earth rotation
Earth revolution
To an observer in Largo, MD, the North Star, Polaris, is always located above the
northern horizon at an altitude of approximately:
23.5°
38°
66.5°
90°
1
_____ 6.
a.
b.
c.
d.
e.
_____ 7.
a.
b.
c.
d.
e.
_____ 8.
a.
b.
c.
d.
In order to have a lunar eclipse, you need to have
the moon on or close to plane of Earth’s orbit
a full moon
a new moon
(a) and (b)
(b) and (c)
The tilt of Earth’s axis is:
90o from its orbital plane
23.5o from its orbital plane
0o from its orbital plane
the same as the Moon’s
the same as our latitude
The apparent rising and setting of the Sun, as viewed from Earth, is caused by:
Earth’s rotation
the Sun’s rotation
Earth’s revolution
the Sun’s revolution
_____ 9.
A moon is an object that:
a.
b.
c.
d.
e.
does not revolve
revolves around a star
revolves around a planet
rotates around a planet
rotates around a star
_____ 10.
a.
b.
c.
d.
_____ 11.
a.
b.
c.
d.
A cycle of Moon phases can be seen from Earth because the:
Moon spins on its axis
Moon’s distance from Earth changes at a predictable rate
Moon’s axis is tilted
Moon revolves around Earth
Relative to the horizon, as seen from the Earth's southern hemisphere, the Sun
each day will
move mainly in a northward direction
move mainly in a southward direction
rise in the east and set in the west
rise in the west and set in the east
2
Base your answers to questions 12-14 on the diagram below, which shows the tilt of Earth on its
axis in relation to the Sun on one particular day. Points A through E are locations on Earth’s
surface. Point D is located in Maryland. The dashed line represents Earth’s axis.
_____ 12.
Which view below best represents the angle of the Sun’s rays received at location
C at noon on this day?
A
B
C
D
_____ 13.
a.
_____ 14.
a.
Which non-polar location is in a winter season?
A
b.
B
c.
C
d.
E
d.
E
At which location will the Sun never set on this day?
A
b.
B
c.
3
D
_____ 15.
a.
b.
c.
d.
_____ 16.
a.
b.
c.
e.
_____ 17.
a.
b.
c.
d.
e.
_____ 18.
a.
b.
c.
d.
e.
II.
A celestial object directly overhead is located at the:
North Celestial Pole
zenith
equinox
right ascension
Summer days in Maryland are likely to be hotter than winter days because in
summer:
Earth is closer to the Sun
the number of sunspots increases
the Sun gives off more energy
Earth’s northern axis is tilted toward the Sun
A lunar eclipse does not occur every month because
sometimes the Moon is closer to the Earth.
the Moon always keeps the same side toward the Earth.
the Moon's orbit is inclined with respect to the Earth's orbit.
sometimes a full moon does not occur.
sometimes the Moon is farther away from the Earth
The instrument used to analyze starlight is called a:
photometer
spectroscope
refractometer
planetarium
celestial analyzer
Explain why the same side of the Moon always faces the Earth.
4
(5)
III.
On the diagrams below using a small circle, sketch in the position of the Moon so that
from the Earth you will see the lunar phase specified. Assume that you are looking down
from the position in space above the North Pole. S = Sun and E = Earth. For Diagram
#3, indicate what the phase of the Earth would be for a person standing on the Moon.
(9)
S
E
1. Full Moon
S
E
2. Gibbous Moon
S
E
3. Crescent
Earth phase ______________
5