Answers are at
the end.
1) Which of
these is not a form of electromagnetic radiation?
A)
television signals
B)
ultraviolet causing a suntan
C)
light from your camp fire
D)
DC current from your car battery
E)
x-rays in the doctor's office
2) The speed of
light in a vacuum is written as:
A)
h = E/c.
B)
v = 186,000 miles per hour.
C)
v = 768 km/hour.
D)
c = 300,000 km/sec.
E)
not given
3) The radiation
our eyes are most sensitive to lies in the color:
A)
blue at 4,321 nanometers.
B)
yellow-green at about 550 nm.
C)
red at 6563 Angstroms.
D)
black at 227 nm.
E)
violet at 7,000 Angstroms.
4) The tendency
of a medium to block transmission of a certain wavelength of radiation is
referred to as its:
A)
seeing.
B)
opacity.
C)
clarity.
D)
transparency.
E)
albedo.
8) Which feels hotter?
25) The model of the atom with quantum leaps between
electron orbitals is that of: A) Albert Einstein. B) Isaac Newton. C) Neils Bohr. D) Scott Bachula. E) Wilhelm Kirchhoff. 26) That electromagnetic radiation can behave not only as a
wave, but as a packet of energy, or a photon, is due to: A) Enrico Fermi. B) Edward Teller. C) Neils Bohr. D) Isaac Newton. E) Albert Einstein. 27) The magnetic fields of sunspots are studied by the
splitting of their spectral lines in the: A) Doppler effect. B) Stefan's law. C) Zeeman effect. D) Kirchhoffts third law. E) Bohr model. 28) When we glimpse the chromosphere at the start and end of
totality, its color is: A) yellow, like the photosphere
below it. B) red, due to ionized hydrogen at
lower pressure. C) green (the famous flash). D) blue, due to the ionization of
nitrogen by the magnetic fields. E) white from the moonlight. 29) The solar winds blow outward from: A) the Sun's poles only. B) flares. C) the entire photosphere. D) coronal holes. E) sunspots. 30) In the proton-proton cycle, the positron is: A) an anti-electron. B) the chief means energy reaches
the photosphere. C) a spin conservation particle. D) massless. E) intermediate between the proton
and neutron in mass. 31) The most striking example of solar variability was the: A) Dust Bowl drought of the 1930s. B) Sporer Minimum that doomed the
Anasazi. C) Joseph's seven lean years in the
Old Testament. D) Maunder Minimum from 1645-1715. E) the fall of Rome. 32) The ESA satellite which gave us our best parallax
measurements is: A) Huygens. B) Cassini. C) Giotto. D) Hipparcos. E) Copernicus. Key: D D B B B B C B D D A D B B B D C B D D B C E D C E C B D A D D 9) The relationship that the total energy radiated by a black body is
proportional to T4 is attributed to?
1: Bunsen
2: Wien
3: Kirchhoff
4: Stefan
10) What kind of
spectrum do we see from the sun?
A)
a continuum with no lines, as shown by the rainbow
B)
a continuum with emission lines
C)
only absorption lines on a black background
D)
a continuum with absorption lines
E)
only emission lines on a black background
11) Which property
of a black body is NOT true?
A) It appears black to
us, regardless of its temperature
B) Its energy is in a
continuum.
C) Its energy peaks at
the wavelength determined by its temperature.
D) If its temperature
is doubled, the peak in its curve would be halved in wavelength.
E) If its temperature
doubled, it would give off 16 times more total energy.
12) A pulsating
variable star has a temperature ranging from 4000 K to 8000 K. When it is hottest, each cm2 of
surface radiates how much more energy?
A) (sqrt2)x more
B) 2x more
C) 4x more
D) 16x more
13) The element
first found in the Sun’s spectrum and then on Earth 30 years later is…
A) hydrogen
B) helium
C) solarium
D) technicum
14) A source of
light is approaching us at 3,000 km/s.
All its waves are:
A) Red shifted by 1%
B) Blue shifted by 1%
C) Not affected, as c is constant in all
reference frames.
D) Red shifted out of the visible into the
infrared
E) Blue shifted out of the visible into the
ultraviolet
15) The
temperature of the photosphere of the Sun is about:
A) 4500 K
B) 5800
K
C) 11000 K
D) 1 million K
E) 15 million K
16 )The Sun’s
average density is about the same as:
A) the Earth’s Moon
B) the Earth
C) Haley’s Comet
D) Jupiter
E) Saturn
17) From inside
out, which is the correct order?
A) core, convective
zone, radiative zone
B) photosphere,
radiative zone, corona
C) radiative zone,
convective zone, chromosphere
D) core, chromosphere,
photosphere
E) convective zone,
radiative zone, granulation
18) Typically, a
granule in the photosphere of the sun is about the size of?
A) A city, ~20-30
kilometers across.
B) Texas, ~1000 km
across.
C) The Moon, ~3000 km
across.
D) The Earth, ~12,000
km across.
E) Jupiter, ~100,000
km across.
19) What is the
temperature of 150 C in Kelvin?
A) 212 K
B) 433 K
C) 413 K
D) 423 K
E) 522 K
20) A star's
absolute magnitude is its apparent brightness as seen from:
A) Pluto.
B) Alpha Centauri.
C) 10 light years distance.
D) 33 light years distance.
E) 100 parsecs distance.
21) Which is
correct
1 :
velocity x frequency = wavelength
2 :
velocity x period = wavelength
3 :
period x frequency = wavelength
4 :
velocity / period = wavelength
22) A star of
temperature 3,750K, just one step hotter than M (at 3,500), would be a related:
A) A9.
B) F5.
C) K9.
D) M1.
E) O3.
23) A star emits
the most energy at a wavelength of 5.8x10-5cm. What is its temperature?
A) 5800 K.
B) 2000 K.
C) 20000 K
D) 0.29 K.
E) 5000 K.
24) What energy
transport gets the energy of the gamma rays to the Sun’s surface?
A) the transition zone
B) meson capture
C) the weak force
D) convection
E) prominences